[{"doi":"10.1524/zpch.2010.6110","date_updated":"2025-12-16T11:09:01Z","author":[{"first_name":"Arno","orcid":"0000-0002-4855-071X","last_name":"Schindlmayr","full_name":"Schindlmayr, Arno","id":"458"},{"last_name":"Friedrich","full_name":"Friedrich, Christoph","first_name":"Christoph"},{"last_name":"Şaşıoğlu","full_name":"Şaşıoğlu, Ersoy","first_name":"Ersoy"},{"last_name":"Blügel","full_name":"Blügel, Stefan","first_name":"Stefan"}],"volume":224,"citation":{"ama":"Schindlmayr A, Friedrich C, Şaşıoğlu E, Blügel S. First-principles calculation of electronic excitations in solids with SPEX. <i>Zeitschrift für Physikalische Chemie</i>. 2010;224(3-4):357-368. doi:<a href=\"https://doi.org/10.1524/zpch.2010.6110\">10.1524/zpch.2010.6110</a>","ieee":"A. Schindlmayr, C. Friedrich, E. Şaşıoğlu, and S. Blügel, “First-principles calculation of electronic excitations in solids with SPEX,” <i>Zeitschrift für Physikalische Chemie</i>, vol. 224, no. 3–4, pp. 357–368, 2010, doi: <a href=\"https://doi.org/10.1524/zpch.2010.6110\">10.1524/zpch.2010.6110</a>.","chicago":"Schindlmayr, Arno, Christoph Friedrich, Ersoy Şaşıoğlu, and Stefan Blügel. “First-Principles Calculation of Electronic Excitations in Solids with SPEX.” <i>Zeitschrift Für Physikalische Chemie</i> 224, no. 3–4 (2010): 357–68. <a href=\"https://doi.org/10.1524/zpch.2010.6110\">https://doi.org/10.1524/zpch.2010.6110</a>.","short":"A. Schindlmayr, C. Friedrich, E. Şaşıoğlu, S. Blügel, Zeitschrift Für Physikalische Chemie 224 (2010) 357–368.","mla":"Schindlmayr, Arno, et al. “First-Principles Calculation of Electronic Excitations in Solids with SPEX.” <i>Zeitschrift Für Physikalische Chemie</i>, vol. 224, no. 3–4, Oldenbourg, 2010, pp. 357–68, doi:<a href=\"https://doi.org/10.1524/zpch.2010.6110\">10.1524/zpch.2010.6110</a>.","bibtex":"@article{Schindlmayr_Friedrich_Şaşıoğlu_Blügel_2010, title={First-principles calculation of electronic excitations in solids with SPEX}, volume={224}, DOI={<a href=\"https://doi.org/10.1524/zpch.2010.6110\">10.1524/zpch.2010.6110</a>}, number={3–4}, journal={Zeitschrift für Physikalische Chemie}, publisher={Oldenbourg}, author={Schindlmayr, Arno and Friedrich, Christoph and Şaşıoğlu, Ersoy and Blügel, Stefan}, year={2010}, pages={357–368} }","apa":"Schindlmayr, A., Friedrich, C., Şaşıoğlu, E., &#38; Blügel, S. (2010). First-principles calculation of electronic excitations in solids with SPEX. <i>Zeitschrift Für Physikalische Chemie</i>, <i>224</i>(3–4), 357–368. <a href=\"https://doi.org/10.1524/zpch.2010.6110\">https://doi.org/10.1524/zpch.2010.6110</a>"},"page":"357-368","intvolume":"       224","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["0942-9352"],"eissn":["2196-7156"]},"article_type":"original","isi":"1","file_date_updated":"2020-08-30T15:04:39Z","_id":"18557","user_id":"16199","department":[{"_id":"296"},{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"230"}],"status":"public","type":"journal_article","title":"First-principles calculation of electronic excitations in solids with SPEX","publisher":"Oldenbourg","date_created":"2020-08-28T11:20:50Z","year":"2010","quality_controlled":"1","issue":"3-4","ddc":["530"],"language":[{"iso":"eng"}],"external_id":{"arxiv":["1110.1596"],"isi":["000281124800006"]},"abstract":[{"text":"We describe the software package SPEX, which allows first-principles calculations of quasiparticle and collective electronic excitations in solids using techniques from many-body perturbation theory. The implementation is based on the full-potential linearized augmented-plane-wave (FLAPW) method, which treats core and valence electrons on an equal footing and can be applied to a wide range of materials, including transition metals and rare earths. After a discussion of essential features that contribute to the high numerical efficiency of the code, we present illustrative results for quasiparticle band structures calculated within the GW approximation for the electronic self-energy, electron-energy-loss spectra with inter- and intraband transitions as well as local-field effects, and spin-wave spectra of itinerant ferromagnets. In all cases the inclusion of many-body correlation terms leads to very good quantitative agreement with experimental spectroscopies.","lang":"eng"}],"file":[{"title":"First-principles calculation of electronic excitations in solids with SPEX","description":"© 2010 Oldenbourg Wissenschaftsverlag, München","file_size":912086,"file_name":"zpch.2010.6110.pdf","access_level":"closed","file_id":"18581","date_updated":"2020-08-30T15:04:39Z","creator":"schindlm","date_created":"2020-08-28T14:34:10Z","relation":"main_file","content_type":"application/pdf"}],"publication":"Zeitschrift für Physikalische Chemie"},{"file_date_updated":"2018-08-28T09:13:01Z","article_type":"original","article_number":"075307","user_id":"16199","department":[{"_id":"15"},{"_id":"293"},{"_id":"170"},{"_id":"230"},{"_id":"35"},{"_id":"34"},{"_id":"61"}],"_id":"4177","status":"public","type":"journal_article","doi":"10.1103/physrevb.81.075307","author":[{"first_name":"I.","last_name":"Kuznetsova","full_name":"Kuznetsova, I."},{"full_name":"Gőgh, N.","last_name":"Gőgh","first_name":"N."},{"full_name":"Förstner, Jens","id":"158","orcid":"0000-0001-7059-9862","last_name":"Förstner","first_name":"Jens"},{"first_name":"Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","full_name":"Meier, Torsten","id":"344"},{"first_name":"S. T.","last_name":"Cundiff","full_name":"Cundiff, S. T."},{"first_name":"I.","last_name":"Varga","full_name":"Varga, I."},{"first_name":"P.","last_name":"Thomas","full_name":"Thomas, P."}],"volume":81,"date_updated":"2025-12-16T11:24:45Z","citation":{"ama":"Kuznetsova I, Gőgh N, Förstner J, et al. Modeling excitonic line shapes in weakly disordered semiconductor nanostructures. <i>Physical Review B</i>. 2010;81(7). doi:<a href=\"https://doi.org/10.1103/physrevb.81.075307\">10.1103/physrevb.81.075307</a>","ieee":"I. Kuznetsova <i>et al.</i>, “Modeling excitonic line shapes in weakly disordered semiconductor nanostructures,” <i>Physical Review B</i>, vol. 81, no. 7, Art. no. 075307, 2010, doi: <a href=\"https://doi.org/10.1103/physrevb.81.075307\">10.1103/physrevb.81.075307</a>.","chicago":"Kuznetsova, I., N. Gőgh, Jens Förstner, Torsten Meier, S. T. Cundiff, I. Varga, and P. Thomas. “Modeling Excitonic Line Shapes in Weakly Disordered Semiconductor Nanostructures.” <i>Physical Review B</i> 81, no. 7 (2010). <a href=\"https://doi.org/10.1103/physrevb.81.075307\">https://doi.org/10.1103/physrevb.81.075307</a>.","apa":"Kuznetsova, I., Gőgh, N., Förstner, J., Meier, T., Cundiff, S. T., Varga, I., &#38; Thomas, P. (2010). Modeling excitonic line shapes in weakly disordered semiconductor nanostructures. <i>Physical Review B</i>, <i>81</i>(7), Article 075307. <a href=\"https://doi.org/10.1103/physrevb.81.075307\">https://doi.org/10.1103/physrevb.81.075307</a>","mla":"Kuznetsova, I., et al. “Modeling Excitonic Line Shapes in Weakly Disordered Semiconductor Nanostructures.” <i>Physical Review B</i>, vol. 81, no. 7, 075307, American Physical Society (APS), 2010, doi:<a href=\"https://doi.org/10.1103/physrevb.81.075307\">10.1103/physrevb.81.075307</a>.","short":"I. Kuznetsova, N. Gőgh, J. Förstner, T. Meier, S.T. Cundiff, I. Varga, P. Thomas, Physical Review B 81 (2010).","bibtex":"@article{Kuznetsova_Gőgh_Förstner_Meier_Cundiff_Varga_Thomas_2010, title={Modeling excitonic line shapes in weakly disordered semiconductor nanostructures}, volume={81}, DOI={<a href=\"https://doi.org/10.1103/physrevb.81.075307\">10.1103/physrevb.81.075307</a>}, number={7075307}, journal={Physical Review B}, publisher={American Physical Society (APS)}, author={Kuznetsova, I. and Gőgh, N. and Förstner, Jens and Meier, Torsten and Cundiff, S. T. and Varga, I. and Thomas, P.}, year={2010} }"},"intvolume":"        81","publication_status":"published","publication_identifier":{"issn":["1098-0121","1550-235X"]},"has_accepted_license":"1","language":[{"iso":"eng"}],"ddc":["530"],"keyword":["tet_topic_qw"],"file":[{"access_level":"closed","file_name":"2010 Kuznetsova,Gögh,Förstner,Meier T,Cundiff, Varga,Thomas_Modeling excitonic line shapes in weakly disordered semiconductor nanostructures.pdf","file_id":"4178","file_size":713758,"date_created":"2018-08-28T09:13:01Z","creator":"hclaudia","date_updated":"2018-08-28T09:13:01Z","relation":"main_file","success":1,"content_type":"application/pdf"}],"abstract":[{"text":"Excitonic spectra of weakly disordered semiconductor heterostructures are simulated on the basis of a\r\none-dimensional tight-binding model. The influence of the length scale of weak disorder in quantum wells on\r\nthe redshift of the excitonic peak and its linewidth is studied. By calculating two-dimensional Fouriertransform\r\nspectra we are able to determine the contribution of disorder to inhomogeneous and also to homogeneous\r\nbroadenings separately. This disorder-induced dephasing is related to a Fano-type coupling and leads\r\nto contributions to the homogeneous linewidth that depends on energy within the inhomogeneously broadened\r\nline. The model includes heavy- and light-hole excitons and yields smaller inhomogeneous broadening for the\r\nlight-hole exciton if compared to the heavy-hole exciton, which agrees qualitatively with the experiment.","lang":"eng"}],"publication":"Physical Review B","title":"Modeling excitonic line shapes in weakly disordered semiconductor nanostructures","date_created":"2018-08-28T09:09:37Z","publisher":"American Physical Society (APS)","year":"2010","issue":"7"},{"citation":{"ama":"Declair S, Meier C, Meier T, Förstner J. Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment. <i>Photonics and Nanostructures - Fundamentals and Applications</i>. 2010;8(4):273-277. doi:<a href=\"https://doi.org/10.1016/j.photonics.2010.03.002\">10.1016/j.photonics.2010.03.002</a>","chicago":"Declair, S., Cedrik Meier, Torsten Meier, and Jens Förstner. “Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in an Anisotropic Environment.” <i>Photonics and Nanostructures - Fundamentals and Applications</i> 8, no. 4 (2010): 273–77. <a href=\"https://doi.org/10.1016/j.photonics.2010.03.002\">https://doi.org/10.1016/j.photonics.2010.03.002</a>.","ieee":"S. Declair, C. Meier, T. Meier, and J. Förstner, “Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment,” <i>Photonics and Nanostructures - Fundamentals and Applications</i>, vol. 8, no. 4, pp. 273–277, 2010, doi: <a href=\"https://doi.org/10.1016/j.photonics.2010.03.002\">10.1016/j.photonics.2010.03.002</a>.","apa":"Declair, S., Meier, C., Meier, T., &#38; Förstner, J. (2010). Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment. <i>Photonics and Nanostructures - Fundamentals and Applications</i>, <i>8</i>(4), 273–277. <a href=\"https://doi.org/10.1016/j.photonics.2010.03.002\">https://doi.org/10.1016/j.photonics.2010.03.002</a>","short":"S. Declair, C. Meier, T. Meier, J. Förstner, Photonics and Nanostructures - Fundamentals and Applications 8 (2010) 273–277.","mla":"Declair, S., et al. “Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in an Anisotropic Environment.” <i>Photonics and Nanostructures - Fundamentals and Applications</i>, vol. 8, no. 4, Elsevier BV, 2010, pp. 273–77, doi:<a href=\"https://doi.org/10.1016/j.photonics.2010.03.002\">10.1016/j.photonics.2010.03.002</a>.","bibtex":"@article{Declair_Meier_Meier_Förstner_2010, title={Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment}, volume={8}, DOI={<a href=\"https://doi.org/10.1016/j.photonics.2010.03.002\">10.1016/j.photonics.2010.03.002</a>}, number={4}, journal={Photonics and Nanostructures - Fundamentals and Applications}, publisher={Elsevier BV}, author={Declair, S. and Meier, Cedrik and Meier, Torsten and Förstner, Jens}, year={2010}, pages={273–277} }"},"page":"273-277","intvolume":"         8","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["1569-4410"]},"doi":"10.1016/j.photonics.2010.03.002","date_updated":"2025-12-16T11:23:48Z","author":[{"full_name":"Declair, S.","last_name":"Declair","first_name":"S."},{"first_name":"Cedrik","orcid":"https://orcid.org/0000-0002-3787-3572","last_name":"Meier","id":"20798","full_name":"Meier, Cedrik"},{"orcid":"0000-0001-8864-2072","last_name":"Meier","id":"344","full_name":"Meier, Torsten","first_name":"Torsten"},{"id":"158","full_name":"Förstner, Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862","first_name":"Jens"}],"volume":8,"status":"public","type":"journal_article","article_type":"original","file_date_updated":"2018-08-27T10:21:38Z","_id":"4125","user_id":"16199","department":[{"_id":"15"},{"_id":"230"},{"_id":"293"},{"_id":"287"},{"_id":"35"},{"_id":"170"},{"_id":"35"},{"_id":"34"},{"_id":"61"}],"year":"2010","issue":"4","title":"Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment","publisher":"Elsevier BV","date_created":"2018-08-27T10:19:59Z","abstract":[{"lang":"eng","text":"We numerically investigate the behavior of Whispering Gallery Modes (WGMs) in circularly shaped resonators like microdisks, with diameters in the range of optical vacuum wavelengths. The microdisk is embedded in an uniaxial anisotropic dielectric environment. By changing the optical anisotropy, one obtains spectral tunability of the optical modes. The degree of tunability strongly depends on the radial (azimuthal) mode order M (N). As the modes approach each other spectrally, anticrossing is observed, leading to a rearrangement of the optical states."}],"file":[{"access_level":"closed","file_id":"4126","file_name":"2010 Declair,Meier C, Meier T, Förstner_Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment.pdf","file_size":304758,"date_created":"2018-08-27T10:21:38Z","creator":"hclaudia","date_updated":"2018-08-27T10:21:38Z","relation":"main_file","success":1,"content_type":"application/pdf"}],"publication":"Photonics and Nanostructures - Fundamentals and Applications","ddc":["530"],"keyword":["tet_topic_microdisk"],"language":[{"iso":"eng"}]},{"publication_identifier":{"issn":["1749-4885","1749-4893"]},"publication_status":"published","page":"545-548","intvolume":"         4","citation":{"apa":"Michaelis de Vasconcellos, S., Gordon, S., Bichler, M., Meier, T., &#38; Zrenner, A. (2010). Coherent control of a single exciton qubit by optoelectronic manipulation. <i>Nature Photonics</i>, <i>4</i>(8), 545–548. <a href=\"https://doi.org/10.1038/nphoton.2010.124\">https://doi.org/10.1038/nphoton.2010.124</a>","mla":"Michaelis de Vasconcellos, S., et al. “Coherent Control of a Single Exciton Qubit by Optoelectronic Manipulation.” <i>Nature Photonics</i>, vol. 4, no. 8, Springer Nature, 2010, pp. 545–48, doi:<a href=\"https://doi.org/10.1038/nphoton.2010.124\">10.1038/nphoton.2010.124</a>.","bibtex":"@article{Michaelis de Vasconcellos_Gordon_Bichler_Meier_Zrenner_2010, title={Coherent control of a single exciton qubit by optoelectronic manipulation}, volume={4}, DOI={<a href=\"https://doi.org/10.1038/nphoton.2010.124\">10.1038/nphoton.2010.124</a>}, number={8}, journal={Nature Photonics}, publisher={Springer Nature}, author={Michaelis de Vasconcellos, S. and Gordon, S. and Bichler, M. and Meier, Torsten and Zrenner, Artur}, year={2010}, pages={545–548} }","short":"S. Michaelis de Vasconcellos, S. Gordon, M. Bichler, T. Meier, A. Zrenner, Nature Photonics 4 (2010) 545–548.","ieee":"S. Michaelis de Vasconcellos, S. Gordon, M. Bichler, T. Meier, and A. Zrenner, “Coherent control of a single exciton qubit by optoelectronic manipulation,” <i>Nature Photonics</i>, vol. 4, no. 8, pp. 545–548, 2010, doi: <a href=\"https://doi.org/10.1038/nphoton.2010.124\">10.1038/nphoton.2010.124</a>.","chicago":"Michaelis de Vasconcellos, S., S. Gordon, M. Bichler, Torsten Meier, and Artur Zrenner. “Coherent Control of a Single Exciton Qubit by Optoelectronic Manipulation.” <i>Nature Photonics</i> 4, no. 8 (2010): 545–48. <a href=\"https://doi.org/10.1038/nphoton.2010.124\">https://doi.org/10.1038/nphoton.2010.124</a>.","ama":"Michaelis de Vasconcellos S, Gordon S, Bichler M, Meier T, Zrenner A. Coherent control of a single exciton qubit by optoelectronic manipulation. <i>Nature Photonics</i>. 2010;4(8):545-548. doi:<a href=\"https://doi.org/10.1038/nphoton.2010.124\">10.1038/nphoton.2010.124</a>"},"volume":4,"author":[{"full_name":"Michaelis de Vasconcellos, S.","last_name":"Michaelis de Vasconcellos","first_name":"S."},{"last_name":"Gordon","full_name":"Gordon, S.","first_name":"S."},{"last_name":"Bichler","full_name":"Bichler, M.","first_name":"M."},{"first_name":"Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","id":"344","full_name":"Meier, Torsten"},{"last_name":"Zrenner","orcid":"0000-0002-5190-0944","full_name":"Zrenner, Artur","id":"606","first_name":"Artur"}],"date_updated":"2025-12-16T11:22:52Z","doi":"10.1038/nphoton.2010.124","type":"journal_article","status":"public","department":[{"_id":"15"},{"_id":"230"},{"_id":"35"},{"_id":"170"},{"_id":"293"},{"_id":"35"}],"user_id":"16199","_id":"4547","article_type":"original","issue":"8","year":"2010","date_created":"2018-09-20T12:19:52Z","publisher":"Springer Nature","title":"Coherent control of a single exciton qubit by optoelectronic manipulation","publication":"Nature Photonics","abstract":[{"text":"The coherent state manipulation of single quantum systems is a fundamental requirement for the implementation of quantum information processors. Exciton qubits are of particular interest for coherent optoelectronic applications, in particular due to their excellent coupling to photons. Until now, coherent manipulations of exciton qubits in semiconductor quantum dots have been performed predominantly by pulsed laser fields. Coherent control of the population of excitonic states with a single laser pulse, observed by Rabi oscillations, has been demonstrated by several groups using different techniques1,2,3. By using two laser pulses, more general state control can be achieved4, and coupling of two excitons has been reported5,6. Here, we present a conceptually new approach for implementing the coherent control of an exciton two-level system (qubit) by means of a time-dependent electric interaction. The new scheme makes use of an optical clock signal and a synchronous electric gate signal, which controls the coherent manipulation.","lang":"eng"}],"language":[{"iso":"eng"}]},{"language":[{"iso":"eng"}],"keyword":["tet_topic_qd","tet_topic_microdisk"],"ddc":["530"],"publication":"Physica E: Low-dimensional Systems and Nanostructures","file":[{"file_name":"2010 Piegdon,Offer,Lork,Urbanski,Hoischen,Kitzerwo, Declair,Förstner_Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator.pdf","file_id":"4124","access_level":"closed","file_size":403248,"creator":"hclaudia","date_created":"2018-08-27T10:06:57Z","date_updated":"2018-08-27T10:06:57Z","relation":"main_file","success":1,"content_type":"application/pdf"}],"abstract":[{"text":"GaAs-based semiconductor microdisks with high quality whispering gallery modes (Q44000) have been fabricated.A layer of self-organized InAs quantumdots (QDs) served as a light source to feed the optical modes at room temperature. In order to achieve frequency tuning of the optical modes, the microdisk devices have been immersed in 4 – cyano – 4´-pentylbiphenyl (5CB), a liquid crystal(LC) with a nematic phase below the clearing temperature of  TC≈34°C .We have studied the device performance in the temperature rangeof T=20-50°C, in order to investigate the influence of the nematic–isotropic phase transition on the optical modes. Moreover,we havea pplied an AC electric field to the device,which leads in the nematic phase to a reorientation of the anisotropic dielectric tensor of the liquid crystal.This electrical anisotropy can be used to achieve electrical tunability of the optical modes.Using the finite-difference time domain (FDTD) technique with an anisotropic material model, we are able to describe the influence of the liquid crystal qualitatively.","lang":"eng"}],"date_created":"2018-08-27T10:03:35Z","publisher":"Elsevier BV","title":"Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator","issue":"10","year":"2010","department":[{"_id":"15"},{"_id":"230"},{"_id":"2"},{"_id":"293"},{"_id":"292"},{"_id":"35"},{"_id":"287"},{"_id":"313"},{"_id":"170"}],"user_id":"16199","_id":"4123","file_date_updated":"2018-08-27T10:06:57Z","article_type":"original","type":"journal_article","status":"public","volume":42,"author":[{"last_name":"Piegdon","full_name":"Piegdon, Karoline A.","first_name":"Karoline A."},{"full_name":"Offer, Matthias","last_name":"Offer","first_name":"Matthias"},{"first_name":"Axel","last_name":"Lorke","full_name":"Lorke, Axel"},{"first_name":"Martin","last_name":"Urbanski","full_name":"Urbanski, Martin"},{"first_name":"Andreas","last_name":"Hoischen","full_name":"Hoischen, Andreas"},{"full_name":"Kitzerow, Heinz-Siegfried","id":"254","last_name":"Kitzerow","first_name":"Heinz-Siegfried"},{"first_name":"Stefan","last_name":"Declair","full_name":"Declair, Stefan"},{"first_name":"Jens","id":"158","full_name":"Förstner, Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner"},{"first_name":"Torsten","id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier"},{"full_name":"Reuter, Dirk","id":"37763","last_name":"Reuter","first_name":"Dirk"},{"last_name":"Wieck","full_name":"Wieck, Andreas D.","first_name":"Andreas D."},{"id":"20798","full_name":"Meier, Cedrik","last_name":"Meier","orcid":"https://orcid.org/0000-0002-3787-3572","first_name":"Cedrik"}],"date_updated":"2025-12-16T11:32:03Z","doi":"10.1016/j.physe.2009.12.051","publication_identifier":{"issn":["1386-9477"]},"has_accepted_license":"1","publication_status":"published","page":"2552-2555","intvolume":"        42","citation":{"apa":"Piegdon, K. A., Offer, M., Lorke, A., Urbanski, M., Hoischen, A., Kitzerow, H.-S., Declair, S., Förstner, J., Meier, T., Reuter, D., Wieck, A. D., &#38; Meier, C. (2010). Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator. <i>Physica E: Low-Dimensional Systems and Nanostructures</i>, <i>42</i>(10), 2552–2555. <a href=\"https://doi.org/10.1016/j.physe.2009.12.051\">https://doi.org/10.1016/j.physe.2009.12.051</a>","bibtex":"@article{Piegdon_Offer_Lorke_Urbanski_Hoischen_Kitzerow_Declair_Förstner_Meier_Reuter_et al._2010, title={Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator}, volume={42}, DOI={<a href=\"https://doi.org/10.1016/j.physe.2009.12.051\">10.1016/j.physe.2009.12.051</a>}, number={10}, journal={Physica E: Low-dimensional Systems and Nanostructures}, publisher={Elsevier BV}, author={Piegdon, Karoline A. and Offer, Matthias and Lorke, Axel and Urbanski, Martin and Hoischen, Andreas and Kitzerow, Heinz-Siegfried and Declair, Stefan and Förstner, Jens and Meier, Torsten and Reuter, Dirk and et al.}, year={2010}, pages={2552–2555} }","short":"K.A. Piegdon, M. Offer, A. Lorke, M. Urbanski, A. Hoischen, H.-S. Kitzerow, S. Declair, J. Förstner, T. Meier, D. Reuter, A.D. Wieck, C. Meier, Physica E: Low-Dimensional Systems and Nanostructures 42 (2010) 2552–2555.","mla":"Piegdon, Karoline A., et al. “Self-Assembled Quantum Dots in a Liquid-Crystal-Tunable Microdisk Resonator.” <i>Physica E: Low-Dimensional Systems and Nanostructures</i>, vol. 42, no. 10, Elsevier BV, 2010, pp. 2552–55, doi:<a href=\"https://doi.org/10.1016/j.physe.2009.12.051\">10.1016/j.physe.2009.12.051</a>.","chicago":"Piegdon, Karoline A., Matthias Offer, Axel Lorke, Martin Urbanski, Andreas Hoischen, Heinz-Siegfried Kitzerow, Stefan Declair, et al. “Self-Assembled Quantum Dots in a Liquid-Crystal-Tunable Microdisk Resonator.” <i>Physica E: Low-Dimensional Systems and Nanostructures</i> 42, no. 10 (2010): 2552–55. <a href=\"https://doi.org/10.1016/j.physe.2009.12.051\">https://doi.org/10.1016/j.physe.2009.12.051</a>.","ieee":"K. A. Piegdon <i>et al.</i>, “Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator,” <i>Physica E: Low-dimensional Systems and Nanostructures</i>, vol. 42, no. 10, pp. 2552–2555, 2010, doi: <a href=\"https://doi.org/10.1016/j.physe.2009.12.051\">10.1016/j.physe.2009.12.051</a>.","ama":"Piegdon KA, Offer M, Lorke A, et al. Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator. <i>Physica E: Low-dimensional Systems and Nanostructures</i>. 2010;42(10):2552-2555. doi:<a href=\"https://doi.org/10.1016/j.physe.2009.12.051\">10.1016/j.physe.2009.12.051</a>"}},{"publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["0031-9007","1079-7114"]},"citation":{"ieee":"S. Priyadarshi <i>et al.</i>, “Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells,” <i>Physical Review Letters</i>, vol. 104, no. 21, Art. no. 217401, 2010, doi: <a href=\"https://doi.org/10.1103/physrevlett.104.217401\">10.1103/physrevlett.104.217401</a>.","chicago":"Priyadarshi, S., A. M. Racu, K. Pierz, U. Siegner, M. Bieler, H. T. Duc, Jens Förstner, and Torsten Meier. “Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells.” <i>Physical Review Letters</i> 104, no. 21 (2010). <a href=\"https://doi.org/10.1103/physrevlett.104.217401\">https://doi.org/10.1103/physrevlett.104.217401</a>.","ama":"Priyadarshi S, Racu AM, Pierz K, et al. Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells. <i>Physical Review Letters</i>. 2010;104(21). doi:<a href=\"https://doi.org/10.1103/physrevlett.104.217401\">10.1103/physrevlett.104.217401</a>","apa":"Priyadarshi, S., Racu, A. M., Pierz, K., Siegner, U., Bieler, M., Duc, H. T., Förstner, J., &#38; Meier, T. (2010). Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells. <i>Physical Review Letters</i>, <i>104</i>(21), Article 217401. <a href=\"https://doi.org/10.1103/physrevlett.104.217401\">https://doi.org/10.1103/physrevlett.104.217401</a>","mla":"Priyadarshi, S., et al. “Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells.” <i>Physical Review Letters</i>, vol. 104, no. 21, 217401, American Physical Society (APS), 2010, doi:<a href=\"https://doi.org/10.1103/physrevlett.104.217401\">10.1103/physrevlett.104.217401</a>.","short":"S. Priyadarshi, A.M. Racu, K. Pierz, U. Siegner, M. Bieler, H.T. Duc, J. Förstner, T. Meier, Physical Review Letters 104 (2010).","bibtex":"@article{Priyadarshi_Racu_Pierz_Siegner_Bieler_Duc_Förstner_Meier_2010, title={Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells}, volume={104}, DOI={<a href=\"https://doi.org/10.1103/physrevlett.104.217401\">10.1103/physrevlett.104.217401</a>}, number={21217401}, journal={Physical Review Letters}, publisher={American Physical Society (APS)}, author={Priyadarshi, S. and Racu, A. M. and Pierz, K. and Siegner, U. and Bieler, M. and Duc, H. T. and Förstner, Jens and Meier, Torsten}, year={2010} }"},"intvolume":"       104","date_updated":"2025-12-16T11:32:36Z","author":[{"full_name":"Priyadarshi, S.","last_name":"Priyadarshi","first_name":"S."},{"last_name":"Racu","full_name":"Racu, A. M.","first_name":"A. M."},{"first_name":"K.","full_name":"Pierz, K.","last_name":"Pierz"},{"full_name":"Siegner, U.","last_name":"Siegner","first_name":"U."},{"full_name":"Bieler, M.","last_name":"Bieler","first_name":"M."},{"full_name":"Duc, H. T.","last_name":"Duc","first_name":"H. T."},{"first_name":"Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner","id":"158","full_name":"Förstner, Jens"},{"first_name":"Torsten","full_name":"Meier, Torsten","id":"344","last_name":"Meier","orcid":"0000-0001-8864-2072"}],"volume":104,"doi":"10.1103/physrevlett.104.217401","type":"journal_article","status":"public","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"_id":"4169","user_id":"16199","department":[{"_id":"15"},{"_id":"293"},{"_id":"170"},{"_id":"230"},{"_id":"35"},{"_id":"34"},{"_id":"61"},{"_id":"27"}],"article_type":"original","article_number":"217401","file_date_updated":"2018-08-28T08:41:56Z","issue":"21","year":"2010","publisher":"American Physical Society (APS)","date_created":"2018-08-28T08:40:16Z","title":"Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells","publication":"Physical Review Letters","abstract":[{"text":"It is demonstrated that valence-band mixing in GaAs quantum wells tremendously modifies electronic\r\ntransport. A coherent control scheme in which ultrafast currents are optically injected into undoped GaAs\r\nquantum wells upon excitation with femtosecond laser pulses is employed. An oscillatory dependence of\r\nthe injection current amplitude and direction on the excitation photon energy is observed. A microscopic\r\ntheoretical analysis shows that this current reversal is caused by the coupling of the light- and heavy-hole\r\nbands and that the hole currents dominate the overall current response. These surprising consequences of\r\nband mixing illuminate fundamental physics as they are unique for experiments which are able to monitor\r\nelectronic transport resulting from carriers with relatively large momenta.","lang":"eng"}],"file":[{"file_id":"4170","file_name":"2010 Priyadarshi,Racu,Pierz,Siegner,Bieler,Duc,Förstner,Meier T_Reversal of coherently controlled ultrafast photocurrents by band mixing in undoped GaAs quantum wells.pdf","access_level":"closed","file_size":447293,"date_created":"2018-08-28T08:41:56Z","creator":"hclaudia","date_updated":"2018-08-28T08:41:56Z","relation":"main_file","success":1,"content_type":"application/pdf"}],"ddc":["530"],"keyword":["tet_topic_qw"],"language":[{"iso":"eng"}]},{"year":"2010","publisher":"IEEE","date_created":"2018-08-28T08:34:52Z","title":"Enhanced FDTD edge correction for nonlinear effects calculation","publication":"2010 IEEE Antennas and Propagation Society International Symposium","abstract":[{"text":"The electromagnetic field in the vicinity of sharp edges needs a special treatment in numeric calculation whenever accurate, fast converging results are necessary. One of the fundamental works concerning field singularities has been proposed in 1972 [1] and states that the electromagnetic energy density must be integrable over any finite\r\ndomain, even if this domain contains singularities. It is shown, that the magnetic field \u0002H(\u0003, ϕ) and electric field \u0002E(\u0003, ϕ) are proportional to ∝ \u0003(t−1) for \u0003 → 0. The variable \u0003 is the distance to the edge and t has to fulfill the integrability condition and thus is restricted to 0 < t < 1. This result is often used to reduce the error corresponding to the singularity without increasing the numerical effort [2 - 5]. For this purpose, a correction factor K is estimated by inserting the proportionality into the wave equation. It is shown, that this method improves the accuracy of the result significantly, however the order of convergence is often not studied. In [4] a method to modify the material parameters in order to use analytic results to improve the numeric calculation is presented. In this contribution we will - inspired by the scheme given in [4] - develop a new method to estimate a correction factor for perfect conducting materials (PEC) and demonstrate the improvement of the results compared to the standard edge correction. Therefore analytic results (comparable to [1]) are consequently merged with the scheme in [4]. The main goal of this work is the calculation of the second harmonic generation (SHG) in the wave response of so-called metamaterials [6]. Frequently these structures\r\ncontain sharp metallic edges with field singularities at the interfaces which have a strong impact on the SHG signals. Thus, an accurate simulation of singularities is highly important. However, the following approach can also be applied to many other setups, and one of them is shown in the example below.","lang":"eng"}],"file":[{"date_updated":"2018-09-04T19:31:42Z","creator":"hclaudia","date_created":"2018-08-28T08:36:44Z","file_size":209412,"file_id":"4168","file_name":"2010 Classen,Förstner, Meier T,Schuhmann_Enhanced FDTD edge correction for nonlinear effects calculation.pdf","access_level":"open_access","content_type":"application/pdf","relation":"main_file"}],"keyword":["tet_topic_numerics"],"ddc":["530"],"language":[{"iso":"eng"}],"publication_identifier":{"isbn":["9781424449675","9781424449682"]},"has_accepted_license":"1","publication_status":"published","citation":{"short":"C. Classen, J. Förstner, T. Meier, R. Schuhmann, in: 2010 IEEE Antennas and Propagation Society International Symposium, IEEE, 2010.","bibtex":"@inproceedings{Classen_Förstner_Meier_Schuhmann_2010, title={Enhanced FDTD edge correction for nonlinear effects calculation}, DOI={<a href=\"https://doi.org/10.1109/aps.2010.5562017\">10.1109/aps.2010.5562017</a>}, number={11515155}, booktitle={2010 IEEE Antennas and Propagation Society International Symposium}, publisher={IEEE}, author={Classen, C and Förstner, Jens and Meier, Torsten and Schuhmann, R}, year={2010} }","mla":"Classen, C., et al. “Enhanced FDTD Edge Correction for Nonlinear Effects Calculation.” <i>2010 IEEE Antennas and Propagation Society International Symposium</i>, 11515155, IEEE, 2010, doi:<a href=\"https://doi.org/10.1109/aps.2010.5562017\">10.1109/aps.2010.5562017</a>.","apa":"Classen, C., Förstner, J., Meier, T., &#38; Schuhmann, R. (2010). Enhanced FDTD edge correction for nonlinear effects calculation. <i>2010 IEEE Antennas and Propagation Society International Symposium</i>, Article 11515155. 2010 IEEE international Symposium Antennas, Toronto, ON, Canada. <a href=\"https://doi.org/10.1109/aps.2010.5562017\">https://doi.org/10.1109/aps.2010.5562017</a>","chicago":"Classen, C, Jens Förstner, Torsten Meier, and R Schuhmann. “Enhanced FDTD Edge Correction for Nonlinear Effects Calculation.” In <i>2010 IEEE Antennas and Propagation Society International Symposium</i>. IEEE, 2010. <a href=\"https://doi.org/10.1109/aps.2010.5562017\">https://doi.org/10.1109/aps.2010.5562017</a>.","ieee":"C. Classen, J. Förstner, T. Meier, and R. Schuhmann, “Enhanced FDTD edge correction for nonlinear effects calculation,” presented at the 2010 IEEE international Symposium Antennas, Toronto, ON, Canada, 2010, doi: <a href=\"https://doi.org/10.1109/aps.2010.5562017\">10.1109/aps.2010.5562017</a>.","ama":"Classen C, Förstner J, Meier T, Schuhmann R. Enhanced FDTD edge correction for nonlinear effects calculation. In: <i>2010 IEEE Antennas and Propagation Society International Symposium</i>. IEEE; 2010. doi:<a href=\"https://doi.org/10.1109/aps.2010.5562017\">10.1109/aps.2010.5562017</a>"},"date_updated":"2025-12-16T12:35:39Z","oa":"1","author":[{"first_name":"C","full_name":"Classen, C","last_name":"Classen"},{"first_name":"Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862","id":"158","full_name":"Förstner, Jens"},{"first_name":"Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","id":"344","full_name":"Meier, Torsten"},{"first_name":"R","last_name":"Schuhmann","full_name":"Schuhmann, R"}],"doi":"10.1109/aps.2010.5562017","conference":{"location":"Toronto, ON, Canada","end_date":"2010-07-17","start_date":"2010-07-11","name":"2010 IEEE international Symposium Antennas"},"type":"conference","urn":"41677","status":"public","_id":"4167","department":[{"_id":"61"},{"_id":"15"},{"_id":"293"},{"_id":"170"},{"_id":"230"},{"_id":"35"},{"_id":"34"}],"user_id":"16199","article_number":"11515155 ","file_date_updated":"2018-09-04T19:31:42Z"},{"publication":"Optics Express","file":[{"content_type":"application/pdf","relation":"main_file","creator":"hclaudia","date_created":"2018-08-28T08:52:50Z","date_updated":"2018-09-04T20:02:01Z","file_id":"4173","access_level":"open_access","file_name":"2010 Piegdon,Declair,Förstner,Meier T,Matthias,Urbanski,Kitzerow,Reuter,Wieck,Lorcke,Meier C_Tuning quantum-dot based photonic devices with liquid crystals.pdf","file_size":627755}],"abstract":[{"lang":"eng","text":"Microdisks made from GaAs with embedded InAs quantum dots are immersed in the liquid crystal 4-cyano-4’-pentylbiphenyl (5CB). The quantum dots serve as emitters feeding the optical modes of the photonic cavity. By changing temperature, the liquid crystal undergoes a phase transition from the isotropic to the nematic state, which can be used\r\nas an effective tuning mechanism of the photonic modes of the cavity. In the nematic state, the uniaxial electrical anisotropy of the liquid crystal molecules can be exploited for orienting the material in an electric field,\r\nthus externally controlling the birefringence of the material. Using this effect, an electric field induced tuning of the modes is achieved. Numerical simulations using the finite-differences time-domain (FDTD) technique\r\nemploying an anisotropic dielectric medium allow to understand the alignment of the liquid crystal molecules on the surface of the microdisk resonator."}],"language":[{"iso":"eng"}],"keyword":["tet_topic_qd","tet_topic_microdisk"],"ddc":["530"],"issue":"8","year":"2010","date_created":"2018-08-28T08:50:06Z","publisher":"The Optical Society","title":"Tuning quantum-dot based photonic devices with liquid crystals","type":"journal_article","status":"public","urn":"41725","department":[{"_id":"15"},{"_id":"287"},{"_id":"293"},{"_id":"292"},{"_id":"35"},{"_id":"230"},{"_id":"313"},{"_id":"170"},{"_id":"27"},{"_id":"34"},{"_id":"61"}],"user_id":"16199","_id":"4172","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"file_date_updated":"2018-09-04T20:02:01Z","article_type":"original","article_number":"7946","publication_identifier":{"issn":["1094-4087"]},"has_accepted_license":"1","publication_status":"published","intvolume":"        18","citation":{"chicago":"Piegdon, Karoline A., Stefan Declair, Jens Förstner, Torsten Meier, Heiner Matthias, Martin Urbanski, Heinz-Siegfried Kitzerow, et al. “Tuning Quantum-Dot Based Photonic Devices with Liquid Crystals.” <i>Optics Express</i> 18, no. 8 (2010). <a href=\"https://doi.org/10.1364/oe.18.007946\">https://doi.org/10.1364/oe.18.007946</a>.","ieee":"K. A. Piegdon <i>et al.</i>, “Tuning quantum-dot based photonic devices with liquid crystals,” <i>Optics Express</i>, vol. 18, no. 8, Art. no. 7946, 2010, doi: <a href=\"https://doi.org/10.1364/oe.18.007946\">10.1364/oe.18.007946</a>.","ama":"Piegdon KA, Declair S, Förstner J, et al. Tuning quantum-dot based photonic devices with liquid crystals. <i>Optics Express</i>. 2010;18(8). doi:<a href=\"https://doi.org/10.1364/oe.18.007946\">10.1364/oe.18.007946</a>","short":"K.A. Piegdon, S. Declair, J. Förstner, T. Meier, H. Matthias, M. Urbanski, H.-S. Kitzerow, D. Reuter, A.D. Wieck, A. Lorke, C. Meier, Optics Express 18 (2010).","mla":"Piegdon, Karoline A., et al. “Tuning Quantum-Dot Based Photonic Devices with Liquid Crystals.” <i>Optics Express</i>, vol. 18, no. 8, 7946, The Optical Society, 2010, doi:<a href=\"https://doi.org/10.1364/oe.18.007946\">10.1364/oe.18.007946</a>.","bibtex":"@article{Piegdon_Declair_Förstner_Meier_Matthias_Urbanski_Kitzerow_Reuter_Wieck_Lorke_et al._2010, title={Tuning quantum-dot based photonic devices with liquid crystals}, volume={18}, DOI={<a href=\"https://doi.org/10.1364/oe.18.007946\">10.1364/oe.18.007946</a>}, number={87946}, journal={Optics Express}, publisher={The Optical Society}, author={Piegdon, Karoline A. and Declair, Stefan and Förstner, Jens and Meier, Torsten and Matthias, Heiner and Urbanski, Martin and Kitzerow, Heinz-Siegfried and Reuter, Dirk and Wieck, Andreas D. and Lorke, Axel and et al.}, year={2010} }","apa":"Piegdon, K. A., Declair, S., Förstner, J., Meier, T., Matthias, H., Urbanski, M., Kitzerow, H.-S., Reuter, D., Wieck, A. D., Lorke, A., &#38; Meier, C. (2010). Tuning quantum-dot based photonic devices with liquid crystals. <i>Optics Express</i>, <i>18</i>(8), Article 7946. <a href=\"https://doi.org/10.1364/oe.18.007946\">https://doi.org/10.1364/oe.18.007946</a>"},"volume":18,"author":[{"first_name":"Karoline A.","last_name":"Piegdon","full_name":"Piegdon, Karoline A."},{"full_name":"Declair, Stefan","last_name":"Declair","first_name":"Stefan"},{"full_name":"Förstner, Jens","id":"158","orcid":"0000-0001-7059-9862","last_name":"Förstner","first_name":"Jens"},{"orcid":"0000-0001-8864-2072","last_name":"Meier","full_name":"Meier, Torsten","id":"344","first_name":"Torsten"},{"full_name":"Matthias, Heiner","last_name":"Matthias","first_name":"Heiner"},{"first_name":"Martin","last_name":"Urbanski","full_name":"Urbanski, Martin"},{"id":"254","full_name":"Kitzerow, Heinz-Siegfried","last_name":"Kitzerow","first_name":"Heinz-Siegfried"},{"id":"37763","full_name":"Reuter, Dirk","last_name":"Reuter","first_name":"Dirk"},{"full_name":"Wieck, Andreas D.","last_name":"Wieck","first_name":"Andreas D."},{"first_name":"Axel","last_name":"Lorke","full_name":"Lorke, Axel"},{"first_name":"Cedrik","id":"20798","full_name":"Meier, Cedrik","orcid":"https://orcid.org/0000-0002-3787-3572","last_name":"Meier"}],"oa":"1","date_updated":"2025-12-16T16:44:44Z","doi":"10.1364/oe.18.007946"},{"status":"public","editor":[{"full_name":"Cheng, Z.","last_name":"Cheng","first_name":"Z."},{"first_name":"Q.","full_name":"Zhang, Q.","last_name":"Zhang"},{"full_name":"Bauer, S.","last_name":"Bauer","first_name":"S."},{"full_name":"Wrobleski, D. A.","last_name":"Wrobleski","first_name":"D. A."}],"publication":"Mater. Res. Soc. Symp. Proc. 1134","type":"conference","language":[{"iso":"eng"}],"article_number":"1134-BB09-04","department":[{"_id":"313"},{"_id":"230"},{"_id":"638"}],"user_id":"254","series_title":"Mater. Res. Soc. Symp. Proc.","_id":"40639","intvolume":"      1134","citation":{"ama":"Goodby JW, Bates M, Saez IM, et al. Liquid Crystal Nano-particles, LCNANOP – a SONS II Collaborative Research Project. In: Cheng Z, Zhang Q, Bauer S, Wrobleski DA, eds. <i>Mater. Res. Soc. Symp. Proc. 1134</i>. Vol 1134. Mater. Res. Soc. Symp. Proc. ; 2009.","ieee":"J. W. Goodby <i>et al.</i>, “Liquid Crystal Nano-particles, LCNANOP – a SONS II Collaborative Research Project,” in <i>Mater. Res. Soc. Symp. Proc. 1134</i>, 2009, vol. 1134.","chicago":"Goodby, J. W., M. Bates, I. M. Saez, E. Gorecka, Heinz-Siegfried Kitzerow, D. Guillon, B. Donnio, J.-L. Serrano, and R. Deschenaux. “Liquid Crystal Nano-Particles, LCNANOP – a SONS II Collaborative Research Project.” In <i>Mater. Res. Soc. Symp. Proc. 1134</i>, edited by Z. Cheng, Q. Zhang, S. Bauer, and D. A. Wrobleski, Vol. 1134. Mater. Res. Soc. Symp. Proc., 2009.","mla":"Goodby, J. W., et al. “Liquid Crystal Nano-Particles, LCNANOP – a SONS II Collaborative Research Project.” <i>Mater. Res. Soc. Symp. Proc. 1134</i>, edited by Z. Cheng et al., vol. 1134, 1134-BB09-04, 2009.","bibtex":"@inproceedings{Goodby_Bates_Saez_Gorecka_Kitzerow_Guillon_Donnio_Serrano_Deschenaux_2009, series={Mater. Res. Soc. Symp. Proc.}, title={Liquid Crystal Nano-particles, LCNANOP – a SONS II Collaborative Research Project}, volume={1134}, number={1134-BB09-04}, booktitle={Mater. Res. Soc. Symp. Proc. 1134}, author={Goodby, J. W. and Bates, M. and Saez, I. M. and Gorecka, E. and Kitzerow, Heinz-Siegfried and Guillon, D. and Donnio, B. and Serrano, J.-L. and Deschenaux, R.}, editor={Cheng, Z. and Zhang, Q. and Bauer, S. and Wrobleski, D. A.}, year={2009}, collection={Mater. Res. Soc. Symp. Proc.} }","short":"J.W. Goodby, M. Bates, I.M. Saez, E. Gorecka, H.-S. Kitzerow, D. Guillon, B. Donnio, J.-L. Serrano, R. Deschenaux, in: Z. Cheng, Q. Zhang, S. Bauer, D.A. Wrobleski (Eds.), Mater. Res. Soc. Symp. Proc. 1134, 2009.","apa":"Goodby, J. W., Bates, M., Saez, I. M., Gorecka, E., Kitzerow, H.-S., Guillon, D., Donnio, B., Serrano, J.-L., &#38; Deschenaux, R. (2009). Liquid Crystal Nano-particles, LCNANOP – a SONS II Collaborative Research Project. In Z. Cheng, Q. Zhang, S. Bauer, &#38; D. A. Wrobleski (Eds.), <i>Mater. Res. Soc. Symp. Proc. 1134</i> (No. 1134-BB09-04; Vol. 1134)."},"year":"2009","title":"Liquid Crystal Nano-particles, LCNANOP – a SONS II Collaborative Research Project","volume":1134,"date_created":"2023-01-28T18:58:47Z","author":[{"first_name":"J. W.","last_name":"Goodby","full_name":"Goodby, J. W."},{"first_name":"M.","last_name":"Bates","full_name":"Bates, M."},{"first_name":"I. M.","last_name":"Saez","full_name":"Saez, I. M."},{"last_name":"Gorecka","full_name":"Gorecka, E.","first_name":"E."},{"first_name":"Heinz-Siegfried","last_name":"Kitzerow","id":"254","full_name":"Kitzerow, Heinz-Siegfried"},{"first_name":"D.","last_name":"Guillon","full_name":"Guillon, D."},{"first_name":"B.","full_name":"Donnio, B.","last_name":"Donnio"},{"first_name":"J.-L.","last_name":"Serrano","full_name":"Serrano, J.-L."},{"first_name":"R.","last_name":"Deschenaux","full_name":"Deschenaux, R."}],"date_updated":"2023-01-28T18:59:03Z"},{"date_created":"2023-02-01T10:27:57Z","author":[{"last_name":"Seifert","full_name":"Seifert, Andreas","id":"693","first_name":"Andreas"},{"last_name":"Hilligus","full_name":"Hilligus, Annegret Helen","first_name":"Annegret Helen"},{"first_name":"Niclas","full_name":"Schaper, Niclas","last_name":"Schaper"}],"volume":2,"date_updated":"2023-02-01T12:22:06Z","title":"Entwicklung und psychometrische Überprüfung eines Messinstruments zur Erfassung pädagogischer Kompetenzen in der universitären Lehrerbildung.","issue":"1","publication_status":"published","quality_controlled":"1","citation":{"ieee":"A. Seifert, A. H. Hilligus, and N. Schaper, “Entwicklung und psychometrische Überprüfung eines Messinstruments zur Erfassung pädagogischer Kompetenzen in der universitären Lehrerbildung.,” <i>Lehrerbildung auf dem Prüfstand</i>, vol. 2, no. 1, pp. 82–103, 2009.","chicago":"Seifert, Andreas, Annegret Helen Hilligus, and Niclas Schaper. “Entwicklung und psychometrische Überprüfung eines Messinstruments zur Erfassung pädagogischer Kompetenzen in der universitären Lehrerbildung.” <i>Lehrerbildung auf dem Prüfstand</i> 2, no. 1 (2009): 82–103.","ama":"Seifert A, Hilligus AH, Schaper N. Entwicklung und psychometrische Überprüfung eines Messinstruments zur Erfassung pädagogischer Kompetenzen in der universitären Lehrerbildung. <i>Lehrerbildung auf dem Prüfstand</i>. 2009;2(1):82-103.","apa":"Seifert, A., Hilligus, A. H., &#38; Schaper, N. (2009). Entwicklung und psychometrische Überprüfung eines Messinstruments zur Erfassung pädagogischer Kompetenzen in der universitären Lehrerbildung. <i>Lehrerbildung auf dem Prüfstand</i>, <i>2</i>(1), 82–103.","bibtex":"@article{Seifert_Hilligus_Schaper_2009, title={Entwicklung und psychometrische Überprüfung eines Messinstruments zur Erfassung pädagogischer Kompetenzen in der universitären Lehrerbildung.}, volume={2}, number={1}, journal={Lehrerbildung auf dem Prüfstand}, author={Seifert, Andreas and Hilligus, Annegret Helen and Schaper, Niclas}, year={2009}, pages={82–103} }","short":"A. Seifert, A.H. Hilligus, N. Schaper, Lehrerbildung auf dem Prüfstand 2 (2009) 82–103.","mla":"Seifert, Andreas, et al. “Entwicklung und psychometrische Überprüfung eines Messinstruments zur Erfassung pädagogischer Kompetenzen in der universitären Lehrerbildung.” <i>Lehrerbildung auf dem Prüfstand</i>, vol. 2, no. 1, 2009, pp. 82–103."},"page":"82-103","intvolume":"         2","year":"2009","user_id":"693","department":[{"_id":"33"},{"_id":"427"}],"_id":"41367","language":[{"iso":"ger"}],"type":"journal_article","publication":"Lehrerbildung auf dem Prüfstand","status":"public"},{"language":[{"iso":"eng"}],"_id":"41465","department":[{"_id":"33"},{"_id":"427"}],"user_id":"693","status":"public","publication":"AEPF-Tagung „Selbstregulation – Fremdregulation“","type":"conference_abstract","title":"LEK – Längsschnittliche Erhebung pädagogischer Kompetenzen von Lehramtsstudierenden: Testinstrumente, Forschungsdesign und Fragestellungen.","conference":{"start_date":"28.09.2009","name":"AEPF-Tagung „Selbstregulation – Fremdregulation“","location":"Bochum","end_date":"30.09.2009"},"date_updated":"2023-02-02T10:31:59Z","author":[{"full_name":"König, Johannes","last_name":"König","first_name":"Johannes"},{"full_name":"Seifert, Andreas","id":"693","last_name":"Seifert","first_name":"Andreas"},{"first_name":"Sigrid","last_name":"Blömeke","full_name":"Blömeke, Sigrid"},{"first_name":"Niclas","full_name":"Schaper, Niclas","last_name":"Schaper"}],"date_created":"2023-02-02T10:31:56Z","year":"2009","citation":{"chicago":"König, Johannes, Andreas Seifert, Sigrid Blömeke, and Niclas Schaper. “LEK – Längsschnittliche Erhebung Pädagogischer Kompetenzen von Lehramtsstudierenden: Testinstrumente, Forschungsdesign Und Fragestellungen.” In <i>AEPF-Tagung „Selbstregulation – Fremdregulation“</i>, 2009.","ieee":"J. König, A. Seifert, S. Blömeke, and N. Schaper, “LEK – Längsschnittliche Erhebung pädagogischer Kompetenzen von Lehramtsstudierenden: Testinstrumente, Forschungsdesign und Fragestellungen.,” presented at the AEPF-Tagung „Selbstregulation – Fremdregulation“, Bochum, 2009.","ama":"König J, Seifert A, Blömeke S, Schaper N. LEK – Längsschnittliche Erhebung pädagogischer Kompetenzen von Lehramtsstudierenden: Testinstrumente, Forschungsdesign und Fragestellungen. In: <i>AEPF-Tagung „Selbstregulation – Fremdregulation“</i>. ; 2009.","apa":"König, J., Seifert, A., Blömeke, S., &#38; Schaper, N. (2009). LEK – Längsschnittliche Erhebung pädagogischer Kompetenzen von Lehramtsstudierenden: Testinstrumente, Forschungsdesign und Fragestellungen. <i>AEPF-Tagung „Selbstregulation – Fremdregulation“</i>. AEPF-Tagung „Selbstregulation – Fremdregulation“, Bochum.","mla":"König, Johannes, et al. “LEK – Längsschnittliche Erhebung Pädagogischer Kompetenzen von Lehramtsstudierenden: Testinstrumente, Forschungsdesign Und Fragestellungen.” <i>AEPF-Tagung „Selbstregulation – Fremdregulation“</i>, 2009.","bibtex":"@inproceedings{König_Seifert_Blömeke_Schaper_2009, title={LEK – Längsschnittliche Erhebung pädagogischer Kompetenzen von Lehramtsstudierenden: Testinstrumente, Forschungsdesign und Fragestellungen.}, booktitle={AEPF-Tagung „Selbstregulation – Fremdregulation“}, author={König, Johannes and Seifert, Andreas and Blömeke, Sigrid and Schaper, Niclas}, year={2009} }","short":"J. König, A. Seifert, S. Blömeke, N. Schaper, in: AEPF-Tagung „Selbstregulation – Fremdregulation“, 2009."},"quality_controlled":"1"},{"conference":{"location":"Landau","end_date":"25.03.2009","start_date":"23.03.2009","name":"AEPF-KBBB-Tagung"},"title":"Welche Dimensionen bzw. Modellstruktur liegt der Messung pädagogischer Kompetenz in der universitären Lehrerausbildung zugrunde?","author":[{"last_name":"Seifert","id":"693","full_name":"Seifert, Andreas","first_name":"Andreas"},{"first_name":"Niclas","full_name":"Schaper, Niclas","last_name":"Schaper"}],"date_created":"2023-02-02T11:44:42Z","date_updated":"2023-02-02T11:44:46Z","citation":{"mla":"Seifert, Andreas, and Niclas Schaper. “Welche Dimensionen bzw. Modellstruktur liegt der Messung pädagogischer Kompetenz in der universitären Lehrerausbildung zugrunde?” <i>AEPF-KBBB-Tagung</i>, 2009.","bibtex":"@inproceedings{Seifert_Schaper_2009, title={Welche Dimensionen bzw. Modellstruktur liegt der Messung pädagogischer Kompetenz in der universitären Lehrerausbildung zugrunde?}, booktitle={AEPF-KBBB-Tagung}, author={Seifert, Andreas and Schaper, Niclas}, year={2009} }","short":"A. Seifert, N. Schaper, in: AEPF-KBBB-Tagung, 2009.","apa":"Seifert, A., &#38; Schaper, N. (2009). Welche Dimensionen bzw. Modellstruktur liegt der Messung pädagogischer Kompetenz in der universitären Lehrerausbildung zugrunde? <i>AEPF-KBBB-Tagung</i>. AEPF-KBBB-Tagung, Landau.","ama":"Seifert A, Schaper N. Welche Dimensionen bzw. Modellstruktur liegt der Messung pädagogischer Kompetenz in der universitären Lehrerausbildung zugrunde? In: <i>AEPF-KBBB-Tagung</i>. ; 2009.","chicago":"Seifert, Andreas, and Niclas Schaper. “Welche Dimensionen bzw. Modellstruktur liegt der Messung pädagogischer Kompetenz in der universitären Lehrerausbildung zugrunde?” In <i>AEPF-KBBB-Tagung</i>, 2009.","ieee":"A. Seifert and N. Schaper, “Welche Dimensionen bzw. Modellstruktur liegt der Messung pädagogischer Kompetenz in der universitären Lehrerausbildung zugrunde?,” presented at the AEPF-KBBB-Tagung, Landau, 2009."},"year":"2009","quality_controlled":"1","publication_status":"published","language":[{"iso":"ger"}],"department":[{"_id":"33"},{"_id":"427"}],"user_id":"693","_id":"41472","status":"public","publication":"AEPF-KBBB-Tagung","type":"conference_abstract"},{"publication_status":"published","citation":{"chicago":"Gharibian, Sevag, Hermann Kampermann, and Dagmar Bru{\\ss}. “On Global Effects Caused by Locally Noneffective Unitary Operations.” <i>Quantum Information &#38; Computation</i> 9, no. 11 (2009): 1013–29.","ieee":"S. Gharibian, H. Kampermann, and D. Bru{\\ss}, “On global effects caused by locally noneffective unitary operations,” <i>Quantum Information &#38; Computation</i>, vol. 9, no. 11, pp. 1013–1029, 2009.","ama":"Gharibian S, Kampermann H, Bru{\\ss} D. On global effects caused by locally noneffective unitary operations. <i>Quantum Information &#38; Computation</i>. 2009;9(11):1013-1029.","mla":"Gharibian, Sevag, et al. “On Global Effects Caused by Locally Noneffective Unitary Operations.” <i>Quantum Information &#38; Computation</i>, vol. 9, no. 11, 2009, pp. 1013–29.","bibtex":"@article{Gharibian_Kampermann_Bru{\\ss}_2009, title={On global effects caused by locally noneffective unitary operations}, volume={9}, number={11}, journal={Quantum Information &#38; Computation}, author={Gharibian, Sevag and Kampermann, Hermann and Bru{\\ss}, Dagmar}, year={2009}, pages={1013–1029} }","short":"S. Gharibian, H. Kampermann, D. Bru{\\ss}, Quantum Information &#38; Computation 9 (2009) 1013–1029.","apa":"Gharibian, S., Kampermann, H., &#38; Bru{\\ss}, D. (2009). On global effects caused by locally noneffective unitary operations. <i>Quantum Information &#38; Computation</i>, <i>9</i>(11), 1013–1029."},"page":"1013-1029","intvolume":"         9","date_updated":"2023-02-28T11:04:50Z","oa":"1","author":[{"first_name":"Sevag","full_name":"Gharibian, Sevag","id":"71541","last_name":"Gharibian","orcid":"0000-0002-9992-3379"},{"last_name":"Kampermann","full_name":"Kampermann, Hermann","first_name":"Hermann"},{"full_name":"Bru{\\ss}, Dagmar","last_name":"Bru{\\ss}","first_name":"Dagmar"}],"volume":9,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/0809.4469"}],"type":"journal_article","status":"public","_id":"8180","user_id":"71541","department":[{"_id":"623"},{"_id":"7"}],"article_type":"original","extern":"1","issue":"11","year":"2009","date_created":"2019-03-01T12:12:13Z","title":"On global effects caused by locally noneffective unitary operations","publication":"Quantum Information & Computation","abstract":[{"text":"Given a bipartite quantum state rho with subsystems A and B of arbitrary dimensions, we study the entanglement detecting capabilities of locally noneffective, or cyclic, unitary operations [L. B. Fu, Europhys. Lett., vol. 75, pp. 1-7, 2006]. Local cyclic unitaries have the special property that they leave their target subsystem invariant. We investigate the distance between rho and the global state after local application of such unitaries as a possible indicator of entanglement. To this end, we derive and discuss closed formulae for the maximal such distance achievable for three cases of interest: (pseudo)pure quantum states, Werner states, and two-qubit states. What makes this criterion interesting, as we show here, is that it surprisingly displays behavior similar to recent anomalies observed for non-locality measures in higher dimensions, as well as demonstrates an equivalence to the CHSH inequality for certain classes of two-qubit states. Yet, despite these similarities, the criterion is not itself a non-locality measure. We also consider entanglement detection in bound entangled states.","lang":"eng"}],"external_id":{"arxiv":["0809.4469"]},"language":[{"iso":"eng"}]},{"oa":"1","date_updated":"2023-02-28T11:05:02Z","author":[{"last_name":"Datta","full_name":"Datta, Animesh","first_name":"Animesh"},{"last_name":"Gharibian","orcid":"0000-0002-9992-3379","full_name":"Gharibian, Sevag","id":"71541","first_name":"Sevag"}],"volume":79,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/0811.4003"}],"doi":"10.1103/physreva.79.042325","publication_status":"published","publication_identifier":{"issn":["1050-2947","1094-1622"]},"citation":{"ama":"Datta A, Gharibian S. Signatures of nonclassicality in mixed-state quantum computation. <i>Physical Review A</i>. 2009;79(4). doi:<a href=\"https://doi.org/10.1103/physreva.79.042325\">10.1103/physreva.79.042325</a>","ieee":"A. Datta and S. Gharibian, “Signatures of nonclassicality in mixed-state quantum computation,” <i>Physical Review A</i>, vol. 79, no. 4, 2009, doi: <a href=\"https://doi.org/10.1103/physreva.79.042325\">10.1103/physreva.79.042325</a>.","chicago":"Datta, Animesh, and Sevag Gharibian. “Signatures of Nonclassicality in Mixed-State Quantum Computation.” <i>Physical Review A</i> 79, no. 4 (2009). <a href=\"https://doi.org/10.1103/physreva.79.042325\">https://doi.org/10.1103/physreva.79.042325</a>.","apa":"Datta, A., &#38; Gharibian, S. (2009). Signatures of nonclassicality in mixed-state quantum computation. <i>Physical Review A</i>, <i>79</i>(4). <a href=\"https://doi.org/10.1103/physreva.79.042325\">https://doi.org/10.1103/physreva.79.042325</a>","bibtex":"@article{Datta_Gharibian_2009, title={Signatures of nonclassicality in mixed-state quantum computation}, volume={79}, DOI={<a href=\"https://doi.org/10.1103/physreva.79.042325\">10.1103/physreva.79.042325</a>}, number={4}, journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Datta, Animesh and Gharibian, Sevag}, year={2009} }","mla":"Datta, Animesh, and Sevag Gharibian. “Signatures of Nonclassicality in Mixed-State Quantum Computation.” <i>Physical Review A</i>, vol. 79, no. 4, American Physical Society (APS), 2009, doi:<a href=\"https://doi.org/10.1103/physreva.79.042325\">10.1103/physreva.79.042325</a>.","short":"A. Datta, S. Gharibian, Physical Review A 79 (2009)."},"intvolume":"        79","_id":"8181","user_id":"71541","department":[{"_id":"623"},{"_id":"7"}],"article_type":"original","extern":"1","type":"journal_article","status":"public","publisher":"American Physical Society (APS)","date_created":"2019-03-01T12:12:58Z","title":"Signatures of nonclassicality in mixed-state quantum computation","issue":"4","year":"2009","external_id":{"arxiv":["0811.4003"]},"language":[{"iso":"eng"}],"publication":"Physical Review A","abstract":[{"text":"We investigate signatures of non-classicality in quantum states, in particular, those involved in the DQC1 model of mixed-state quantum computation [Phys. Rev. Lett. 81, 5672 (1998)]. To do so, we consider two known non-classicality criteria. The first quantifies disturbance of a quantum state under locally noneffective unitary operations (LNU), which are local unitaries acting invariantly on a subsystem. The second quantifies measurement induced disturbance (MID) in the eigenbasis of the reduced density matrices. We study the role of both figures of non-classicality in the exponential speedup of the DQC1 model and compare them vis-a-vis the interpretation provided in terms of quantum discord. In particular, we prove that a non-zero quantum discord implies a non-zero shift under LNUs. We also use the MID measure to study the locking of classical correlations [Phys. Rev. Lett. 92, 067902 (2004)] using two mutually unbiased bases (MUB). We find the MID measure to exactly correspond to the number of locked bits of correlation. For three or more MUBs, it predicts the possibility of superior locking effects.","lang":"eng"}]},{"volume":1176,"author":[{"first_name":"Jens","id":"158","full_name":"Förstner, Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862"},{"first_name":"S.","last_name":"Declair","full_name":"Declair, S."},{"last_name":"Meier","orcid":"https://orcid.org/0000-0002-3787-3572","full_name":"Meier, Cedrik","id":"20798","first_name":"Cedrik"},{"first_name":"Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","id":"344","full_name":"Meier, Torsten"}],"date_updated":"2023-04-19T11:13:59Z","doi":"10.1063/1.3253921","conference":{"name":"Theoretical and Computational Nanophotonics Tacona-Photonics","start_date":"2009-10-28","end_date":"2009-10-28","location":"Tacona"},"publication_status":"published","intvolume":"      1176","page":"60-62","citation":{"apa":"Förstner, J., Declair, S., Meier, C., &#38; Meier, T. (2009). Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal. <i>Theoretical and Computational Nanophotonics Tacona-Photonics</i>, <i>1176</i>(1), 60–62. <a href=\"https://doi.org/10.1063/1.3253921\">https://doi.org/10.1063/1.3253921</a>","bibtex":"@inproceedings{Förstner_Declair_Meier_Meier_2009, series={AIP Conference Proceedings }, title={Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal}, volume={1176}, DOI={<a href=\"https://doi.org/10.1063/1.3253921\">10.1063/1.3253921</a>}, number={1}, booktitle={Theoretical and Computational Nanophotonics Tacona-Photonics}, author={Förstner, Jens and Declair, S. and Meier, Cedrik and Meier, Torsten}, year={2009}, pages={60–62}, collection={AIP Conference Proceedings } }","short":"J. Förstner, S. Declair, C. Meier, T. Meier, in: Theoretical and Computational Nanophotonics Tacona-Photonics, 2009, pp. 60–62.","mla":"Förstner, Jens, et al. “Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal.” <i>Theoretical and Computational Nanophotonics Tacona-Photonics</i>, vol. 1176, no. 1, 2009, pp. 60–62, doi:<a href=\"https://doi.org/10.1063/1.3253921\">10.1063/1.3253921</a>.","ama":"Förstner J, Declair S, Meier C, Meier T. Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal. In: <i>Theoretical and Computational Nanophotonics Tacona-Photonics</i>. Vol 1176. AIP Conference Proceedings . ; 2009:60-62. doi:<a href=\"https://doi.org/10.1063/1.3253921\">10.1063/1.3253921</a>","ieee":"J. Förstner, S. Declair, C. Meier, and T. Meier, “Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal,” in <i>Theoretical and Computational Nanophotonics Tacona-Photonics</i>, Tacona, 2009, vol. 1176, no. 1, pp. 60–62, doi: <a href=\"https://doi.org/10.1063/1.3253921\">10.1063/1.3253921</a>.","chicago":"Förstner, Jens, S. Declair, Cedrik Meier, and Torsten Meier. “Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal.” In <i>Theoretical and Computational Nanophotonics Tacona-Photonics</i>, 1176:60–62. AIP Conference Proceedings , 2009. <a href=\"https://doi.org/10.1063/1.3253921\">https://doi.org/10.1063/1.3253921</a>."},"department":[{"_id":"15"},{"_id":"293"},{"_id":"287"},{"_id":"35"},{"_id":"170"},{"_id":"230"}],"series_title":"AIP Conference Proceedings ","user_id":"49063","_id":"4179","type":"conference","status":"public","date_created":"2018-08-28T09:17:05Z","title":"Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal","issue":"1","year":"2009","language":[{"iso":"eng"}],"keyword":["tet_topic_microdisk"],"publication":"Theoretical and Computational Nanophotonics Tacona-Photonics","abstract":[{"text":"We numerically investigate Whispering Gallery Modes (WGM) in a subwavelength microdisk resonator [1] embedded in an uniaxial anisotropic liquid crystal environment. It is shown that the WGMs have anticrossing behavior when modes of different radial mode order M or azimuthal order N approach each other spectrally. ","lang":"eng"}]},{"_id":"23481","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"230"}],"user_id":"49063","language":[{"iso":"eng"}],"publication":"Optics Letters","type":"journal_article","abstract":[{"lang":"eng","text":"A one-dimensional semiconductor nanostructure is locally excited through a metal aperture. It is shown that the electron density can be coherently localized at desired spatial and temporal positions by using nontrivially shaped laser pulses. To obtain the optimized laser field, Bloch equations for a tight-binding model system are solved together with a genetic pulse-shaping algorithm. Full three-dimensional finite-difference time-domain (FDTD) simulations of the Maxwell–Bloch equations confirm the predicted coherent spatiotemporal control."}],"status":"public","date_updated":"2023-04-19T11:16:09Z","volume":34,"date_created":"2021-08-24T08:59:15Z","author":[{"full_name":"Reichelt, Matthias","id":"138","last_name":"Reichelt","first_name":"Matthias"},{"last_name":"Meier","orcid":"0000-0001-8864-2072","id":"344","full_name":"Meier, Torsten","first_name":"Torsten"}],"title":"Shaping the spatiotemporal dynamics of the electron density in a hybrid metal-semiconductor nanostructure","doi":"10.1364/ol.34.002900","publication_identifier":{"issn":["0146-9592","1539-4794"]},"publication_status":"published","issue":"19","year":"2009","page":"2900-2902","intvolume":"        34","citation":{"bibtex":"@article{Reichelt_Meier_2009, title={Shaping the spatiotemporal dynamics of the electron density in a hybrid metal-semiconductor nanostructure}, volume={34}, DOI={<a href=\"https://doi.org/10.1364/ol.34.002900\">10.1364/ol.34.002900</a>}, number={19}, journal={Optics Letters}, author={Reichelt, Matthias and Meier, Torsten}, year={2009}, pages={2900–2902} }","mla":"Reichelt, Matthias, and Torsten Meier. “Shaping the Spatiotemporal Dynamics of the Electron Density in a Hybrid Metal-Semiconductor Nanostructure.” <i>Optics Letters</i>, vol. 34, no. 19, 2009, pp. 2900–02, doi:<a href=\"https://doi.org/10.1364/ol.34.002900\">10.1364/ol.34.002900</a>.","short":"M. Reichelt, T. Meier, Optics Letters 34 (2009) 2900–2902.","apa":"Reichelt, M., &#38; Meier, T. (2009). Shaping the spatiotemporal dynamics of the electron density in a hybrid metal-semiconductor nanostructure. <i>Optics Letters</i>, <i>34</i>(19), 2900–2902. <a href=\"https://doi.org/10.1364/ol.34.002900\">https://doi.org/10.1364/ol.34.002900</a>","ieee":"M. Reichelt and T. Meier, “Shaping the spatiotemporal dynamics of the electron density in a hybrid metal-semiconductor nanostructure,” <i>Optics Letters</i>, vol. 34, no. 19, pp. 2900–2902, 2009, doi: <a href=\"https://doi.org/10.1364/ol.34.002900\">10.1364/ol.34.002900</a>.","chicago":"Reichelt, Matthias, and Torsten Meier. “Shaping the Spatiotemporal Dynamics of the Electron Density in a Hybrid Metal-Semiconductor Nanostructure.” <i>Optics Letters</i> 34, no. 19 (2009): 2900–2902. <a href=\"https://doi.org/10.1364/ol.34.002900\">https://doi.org/10.1364/ol.34.002900</a>.","ama":"Reichelt M, Meier T. Shaping the spatiotemporal dynamics of the electron density in a hybrid metal-semiconductor nanostructure. <i>Optics Letters</i>. 2009;34(19):2900-2902. doi:<a href=\"https://doi.org/10.1364/ol.34.002900\">10.1364/ol.34.002900</a>"}},{"date_updated":"2023-04-21T20:01:45Z","volume":7214,"author":[{"first_name":"M.","full_name":"Bieler, M.","last_name":"Bieler"},{"full_name":"Pierz, K.","last_name":"Pierz","first_name":"K."},{"last_name":"Siegner","full_name":"Siegner, U.","first_name":"U."},{"full_name":"Dawson, P.","last_name":"Dawson","first_name":"P."},{"first_name":"H. T.","full_name":"Duc, H. T.","last_name":"Duc"},{"first_name":"Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862","full_name":"Förstner, Jens","id":"158"},{"last_name":"Meier","orcid":"0000-0001-8864-2072","full_name":"Meier, Torsten","id":"344","first_name":"Torsten"}],"doi":"10.1117/12.811841","conference":{"name":"SPIE OPTO: Integrated Optoelectronic Devices, 2009","location":"San Jose (California / USA)"},"publication_status":"published","intvolume":"      7214","page":"721404-721404-13","citation":{"chicago":"Bieler, M., K. Pierz, U. Siegner, P. Dawson, H. T. Duc, Jens Förstner, and Torsten Meier. “Generation of Injection Currents in (110)-Oriented GaAs Quantum Wells: Experimental Observation and Development of a Microscopic Theory.” In <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII</i>, edited by Kong-Thon Tsen, Jin-Joo Song, Markus Betz, and Abdulhakem Y. Elezzabi, 7214:721404-721404–13. SPIE Proceedings. SPIE, 2009. <a href=\"https://doi.org/10.1117/12.811841\">https://doi.org/10.1117/12.811841</a>.","ieee":"M. Bieler <i>et al.</i>, “Generation of injection currents in (110)-oriented GaAs quantum wells: experimental observation and development of a microscopic theory,” in <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII</i>, San Jose (California / USA), 2009, vol. 7214, pp. 721404-721404–13, doi: <a href=\"https://doi.org/10.1117/12.811841\">10.1117/12.811841</a>.","ama":"Bieler M, Pierz K, Siegner U, et al. Generation of injection currents in (110)-oriented GaAs quantum wells: experimental observation and development of a microscopic theory. In: Tsen K-T, Song J-J, Betz M, Elezzabi AY, eds. <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII</i>. Vol 7214. SPIE Proceedings. SPIE; 2009:721404-721404-721413. doi:<a href=\"https://doi.org/10.1117/12.811841\">10.1117/12.811841</a>","apa":"Bieler, M., Pierz, K., Siegner, U., Dawson, P., Duc, H. T., Förstner, J., &#38; Meier, T. (2009). Generation of injection currents in (110)-oriented GaAs quantum wells: experimental observation and development of a microscopic theory. In K.-T. Tsen, J.-J. Song, M. Betz, &#38; A. Y. Elezzabi (Eds.), <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII</i> (Vol. 7214, pp. 721404-721404–721413). SPIE. <a href=\"https://doi.org/10.1117/12.811841\">https://doi.org/10.1117/12.811841</a>","bibtex":"@inproceedings{Bieler_Pierz_Siegner_Dawson_Duc_Förstner_Meier_2009, series={SPIE Proceedings}, title={Generation of injection currents in (110)-oriented GaAs quantum wells: experimental observation and development of a microscopic theory}, volume={7214}, DOI={<a href=\"https://doi.org/10.1117/12.811841\">10.1117/12.811841</a>}, booktitle={Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII}, publisher={SPIE}, author={Bieler, M. and Pierz, K. and Siegner, U. and Dawson, P. and Duc, H. T. and Förstner, Jens and Meier, Torsten}, editor={Tsen, Kong-Thon and Song, Jin-Joo and Betz, Markus and Elezzabi, Abdulhakem Y.}, year={2009}, pages={721404-721404–13}, collection={SPIE Proceedings} }","mla":"Bieler, M., et al. “Generation of Injection Currents in (110)-Oriented GaAs Quantum Wells: Experimental Observation and Development of a Microscopic Theory.” <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII</i>, edited by Kong-Thon Tsen et al., vol. 7214, SPIE, 2009, pp. 721404-721404–13, doi:<a href=\"https://doi.org/10.1117/12.811841\">10.1117/12.811841</a>.","short":"M. Bieler, K. Pierz, U. Siegner, P. Dawson, H.T. Duc, J. Förstner, T. Meier, in: K.-T. Tsen, J.-J. Song, M. Betz, A.Y. Elezzabi (Eds.), Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII, SPIE, 2009, pp. 721404-721404–13."},"_id":"4184","department":[{"_id":"293"},{"_id":"15"},{"_id":"170"},{"_id":"230"}],"series_title":"SPIE Proceedings","user_id":"49063","type":"conference","editor":[{"first_name":"Kong-Thon","full_name":"Tsen, Kong-Thon","last_name":"Tsen"},{"full_name":"Song, Jin-Joo","last_name":"Song","first_name":"Jin-Joo"},{"first_name":"Markus","last_name":"Betz","full_name":"Betz, Markus"},{"last_name":"Elezzabi","full_name":"Elezzabi, Abdulhakem Y.","first_name":"Abdulhakem Y."}],"status":"public","publisher":"SPIE","date_created":"2018-08-28T09:35:18Z","title":"Generation of injection currents in (110)-oriented GaAs quantum wells: experimental observation and development of a microscopic theory","year":"2009","keyword":["tet_topic_qw"],"language":[{"iso":"eng"}],"publication":"Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII","abstract":[{"text":"We have experimentally investigated injection currents generated by all-optical excitation of GaAs/AlGaAs quantum wells excited with 130 fs optical pulses. The currents have been detected via free-space THz experiments at room temperature. Our experiments prove that Coulomb effects strongly influence injection currents. This becomes most prominently visible when exciting light-hole exciton transitions. At this photon energy we observe a pronounced phase shift of the current transients which is due to oppositely oriented heavy-hole and light-hole type contributions. We are currently developing a microscopic theory based on a 14×14 k.p model in combination with the semiconductor Bloch equations to describe the observed features quantitatively. The combined theoretical and experimental approach will allow us to analyze the influence of the bandstructure and interaction effects on the injection current amplitude and current dynamics.","lang":"eng"}]},{"type":"journal_article","publication":"physica status solidi (c)","abstract":[{"text":"The recently developed two-dimensional Fourier-Transform-Spectroscopy (2DFTS) in the optical regime has been established as an elegant experiment, which has manifold of applications in the investigation of semiconductor nanostructures. Here we focus on the real and imaginary part 2DFT spectra. As predicted recently, using rephasing and non-rephasing modes, we are able to determine the homogeneous and inhomogeneous broadenings of coupled excitonic resonances even for weak disorder where photon-echo data are not useful. Computed real and imaginary parts of the 2DFTS for rephasing and non-rephasing modes are compared with experimental data of a GaAs quantum well. It is demonstrated, that phase sensitive data for the rephasing and non-rephasing modes are able to accurately provide the disorder induced broadening in a complex coupled system for each transition separately. ","lang":"eng"}],"status":"public","_id":"24983","user_id":"49063","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"230"}],"language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"issn":["1610-1634","1610-1642"]},"issue":"2","year":"2009","citation":{"ama":"Kuznetsova I, Thomas P, Meier T, Zhang T, Cundiff ST. Determination of homogeneous and inhomogeneous broadenings of quantum-well excitons by 2DFTS: An experiment-theory comparison. <i>physica status solidi (c)</i>. 2009;6(2):445-448. doi:<a href=\"https://doi.org/10.1002/pssc.200880302\">10.1002/pssc.200880302</a>","ieee":"I. Kuznetsova, P. Thomas, T. Meier, T. Zhang, and S. T. Cundiff, “Determination of homogeneous and inhomogeneous broadenings of quantum-well excitons by 2DFTS: An experiment-theory comparison,” <i>physica status solidi (c)</i>, vol. 6, no. 2, pp. 445–448, 2009, doi: <a href=\"https://doi.org/10.1002/pssc.200880302\">10.1002/pssc.200880302</a>.","chicago":"Kuznetsova, Irina, Peter Thomas, Torsten Meier, Tianhao Zhang, and Steven T. Cundiff. “Determination of Homogeneous and Inhomogeneous Broadenings of Quantum-Well Excitons by 2DFTS: An Experiment-Theory Comparison.” <i>Physica Status Solidi (c)</i> 6, no. 2 (2009): 445–48. <a href=\"https://doi.org/10.1002/pssc.200880302\">https://doi.org/10.1002/pssc.200880302</a>.","apa":"Kuznetsova, I., Thomas, P., Meier, T., Zhang, T., &#38; Cundiff, S. T. (2009). Determination of homogeneous and inhomogeneous broadenings of quantum-well excitons by 2DFTS: An experiment-theory comparison. <i>Physica Status Solidi (c)</i>, <i>6</i>(2), 445–448. <a href=\"https://doi.org/10.1002/pssc.200880302\">https://doi.org/10.1002/pssc.200880302</a>","bibtex":"@article{Kuznetsova_Thomas_Meier_Zhang_Cundiff_2009, title={Determination of homogeneous and inhomogeneous broadenings of quantum-well excitons by 2DFTS: An experiment-theory comparison}, volume={6}, DOI={<a href=\"https://doi.org/10.1002/pssc.200880302\">10.1002/pssc.200880302</a>}, number={2}, journal={physica status solidi (c)}, publisher={WILEY‐VCH Verlag}, author={Kuznetsova, Irina and Thomas, Peter and Meier, Torsten and Zhang, Tianhao and Cundiff, Steven T.}, year={2009}, pages={445–448} }","mla":"Kuznetsova, Irina, et al. “Determination of Homogeneous and Inhomogeneous Broadenings of Quantum-Well Excitons by 2DFTS: An Experiment-Theory Comparison.” <i>Physica Status Solidi (c)</i>, vol. 6, no. 2, WILEY‐VCH Verlag, 2009, pp. 445–48, doi:<a href=\"https://doi.org/10.1002/pssc.200880302\">10.1002/pssc.200880302</a>.","short":"I. Kuznetsova, P. Thomas, T. Meier, T. Zhang, S.T. Cundiff, Physica Status Solidi (c) 6 (2009) 445–448."},"page":"445-448","intvolume":"         6","publisher":"WILEY‐VCH Verlag","date_updated":"2023-04-21T20:06:18Z","author":[{"last_name":"Kuznetsova","full_name":"Kuznetsova, Irina","first_name":"Irina"},{"last_name":"Thomas","full_name":"Thomas, Peter","first_name":"Peter"},{"full_name":"Meier, Torsten","id":"344","last_name":"Meier","orcid":"0000-0001-8864-2072","first_name":"Torsten"},{"last_name":"Zhang","full_name":"Zhang, Tianhao","first_name":"Tianhao"},{"full_name":"Cundiff, Steven T.","last_name":"Cundiff","first_name":"Steven T."}],"date_created":"2021-09-24T08:14:07Z","volume":6,"title":"Determination of homogeneous and inhomogeneous broadenings of quantum-well excitons by 2DFTS: An experiment-theory comparison","doi":"10.1002/pssc.200880302"},{"abstract":[{"text":"A microscopic analysis of the emitted radiation of a semiconductor nanostructure after excitation with an extremely intense ultrashort laser pulse is presented. It is shown that the extreme nonlinear optical response is not sufficiently described by pure interband transitions but one has to include intraband effects as well.\r\nNumerical solutions of extended Bloch equations that include the coupled inter- and intraband dynamics are presented. For large excitation intensities, the intraband effects strongly modify the polarization dynamics and lead to a strong enhancement of high-harmonic generation compared to pure interband dynamics.","lang":"eng"}],"status":"public","type":"journal_article","publication":"physica status solidi (c)","language":[{"iso":"eng"}],"_id":"24982","user_id":"49063","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"230"}],"year":"2009","citation":{"bibtex":"@article{Golde_Meier_Koch_2009, title={Microscopic analysis of high-harmonic generation in semiconductor nanostructures}, volume={6}, DOI={<a href=\"https://doi.org/10.1002/pssc.200880309\">10.1002/pssc.200880309</a>}, number={2}, journal={physica status solidi (c)}, publisher={WILEY‐VCH Verlag}, author={Golde, Daniel and Meier, Torsten and Koch, Stephan W.}, year={2009}, pages={420–423} }","short":"D. Golde, T. Meier, S.W. Koch, Physica Status Solidi (c) 6 (2009) 420–423.","mla":"Golde, Daniel, et al. “Microscopic Analysis of High-Harmonic Generation in Semiconductor Nanostructures.” <i>Physica Status Solidi (c)</i>, vol. 6, no. 2, WILEY‐VCH Verlag, 2009, pp. 420–23, doi:<a href=\"https://doi.org/10.1002/pssc.200880309\">10.1002/pssc.200880309</a>.","apa":"Golde, D., Meier, T., &#38; Koch, S. W. (2009). Microscopic analysis of high-harmonic generation in semiconductor nanostructures. <i>Physica Status Solidi (c)</i>, <i>6</i>(2), 420–423. <a href=\"https://doi.org/10.1002/pssc.200880309\">https://doi.org/10.1002/pssc.200880309</a>","ieee":"D. Golde, T. Meier, and S. W. Koch, “Microscopic analysis of high-harmonic generation in semiconductor nanostructures,” <i>physica status solidi (c)</i>, vol. 6, no. 2, pp. 420–423, 2009, doi: <a href=\"https://doi.org/10.1002/pssc.200880309\">10.1002/pssc.200880309</a>.","chicago":"Golde, Daniel, Torsten Meier, and Stephan W. Koch. “Microscopic Analysis of High-Harmonic Generation in Semiconductor Nanostructures.” <i>Physica Status Solidi (c)</i> 6, no. 2 (2009): 420–23. <a href=\"https://doi.org/10.1002/pssc.200880309\">https://doi.org/10.1002/pssc.200880309</a>.","ama":"Golde D, Meier T, Koch SW. Microscopic analysis of high-harmonic generation in semiconductor nanostructures. <i>physica status solidi (c)</i>. 2009;6(2):420-423. doi:<a href=\"https://doi.org/10.1002/pssc.200880309\">10.1002/pssc.200880309</a>"},"intvolume":"         6","page":"420-423","publication_status":"published","publication_identifier":{"issn":["1610-1634","1610-1642"]},"issue":"2","title":"Microscopic analysis of high-harmonic generation in semiconductor nanostructures","doi":"10.1002/pssc.200880309","date_updated":"2023-04-21T20:07:14Z","publisher":"WILEY‐VCH Verlag","date_created":"2021-09-24T08:12:48Z","author":[{"full_name":"Golde, Daniel","last_name":"Golde","first_name":"Daniel"},{"id":"344","full_name":"Meier, Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","first_name":"Torsten"},{"first_name":"Stephan W.","last_name":"Koch","full_name":"Koch, Stephan W."}],"volume":6},{"abstract":[{"text":"Mapping applications that consist of a collection of cores to FPGA accelerators and optimizing their performance is a challenging task in high performance reconfigurable computing. We present IMORC, an architectural template and highly versatile on-chip interconnect. IMORC links provide asynchronous FIFOs and bitwidth conversion which allows for flexibly composing accelerators from cores running at full speed within their own clock domains, thus facilitating the re-use of cores and portability. Further, IMORC inserts performance counters for monitoring runtime data. In this paper, we first introduce the IMORC architectural template and the on-chip interconnect, and then demonstrate IMORC on the example of accelerating the k-th nearest neighbor thinning problem on an XD1000 reconfigurable computing system. Using IMORC's monitoring infrastructure, we gain insights into the data-dependent behavior of the application which, in turn, allow for optimizing the accelerator. ","lang":"eng"}],"status":"public","type":"conference","publication":"Proc. Int. Symp. on Field-Programmable Custom Computing Machines (FCCM)","keyword":["IMORC","interconnect","performance"],"language":[{"iso":"eng"}],"_id":"2350","user_id":"15278","department":[{"_id":"27"},{"_id":"518"},{"_id":"78"}],"year":"2009","citation":{"bibtex":"@inproceedings{Schumacher_Plessl_Platzner_2009, title={IMORC: Application Mapping, Monitoring and Optimization for High-Performance Reconfigurable Computing}, DOI={<a href=\"https://doi.org/10.1109/FCCM.2009.25\">10.1109/FCCM.2009.25</a>}, booktitle={Proc. Int. Symp. on Field-Programmable Custom Computing Machines (FCCM)}, publisher={IEEE Computer Society}, author={Schumacher, Tobias and Plessl, Christian and Platzner, Marco}, year={2009}, pages={275–278} }","short":"T. Schumacher, C. Plessl, M. Platzner, in: Proc. Int. Symp. on Field-Programmable Custom Computing Machines (FCCM), IEEE Computer Society, 2009, pp. 275–278.","mla":"Schumacher, Tobias, et al. “IMORC: Application Mapping, Monitoring and Optimization for High-Performance Reconfigurable Computing.” <i>Proc. Int. Symp. on Field-Programmable Custom Computing Machines (FCCM)</i>, IEEE Computer Society, 2009, pp. 275–78, doi:<a href=\"https://doi.org/10.1109/FCCM.2009.25\">10.1109/FCCM.2009.25</a>.","apa":"Schumacher, T., Plessl, C., &#38; Platzner, M. (2009). IMORC: Application Mapping, Monitoring and Optimization for High-Performance Reconfigurable Computing. <i>Proc. Int. Symp. on Field-Programmable Custom Computing Machines (FCCM)</i>, 275–278. <a href=\"https://doi.org/10.1109/FCCM.2009.25\">https://doi.org/10.1109/FCCM.2009.25</a>","chicago":"Schumacher, Tobias, Christian Plessl, and Marco Platzner. “IMORC: Application Mapping, Monitoring and Optimization for High-Performance Reconfigurable Computing.” In <i>Proc. Int. Symp. on Field-Programmable Custom Computing Machines (FCCM)</i>, 275–78. IEEE Computer Society, 2009. <a href=\"https://doi.org/10.1109/FCCM.2009.25\">https://doi.org/10.1109/FCCM.2009.25</a>.","ieee":"T. Schumacher, C. Plessl, and M. Platzner, “IMORC: Application Mapping, Monitoring and Optimization for High-Performance Reconfigurable Computing,” in <i>Proc. Int. Symp. on Field-Programmable Custom Computing Machines (FCCM)</i>, 2009, pp. 275–278, doi: <a href=\"https://doi.org/10.1109/FCCM.2009.25\">10.1109/FCCM.2009.25</a>.","ama":"Schumacher T, Plessl C, Platzner M. IMORC: Application Mapping, Monitoring and Optimization for High-Performance Reconfigurable Computing. In: <i>Proc. Int. Symp. on Field-Programmable Custom Computing Machines (FCCM)</i>. IEEE Computer Society; 2009:275-278. doi:<a href=\"https://doi.org/10.1109/FCCM.2009.25\">10.1109/FCCM.2009.25</a>"},"page":"275-278","publication_identifier":{"isbn":["978-1-4244-4450-2"]},"quality_controlled":"1","title":"IMORC: Application Mapping, Monitoring and Optimization for High-Performance Reconfigurable Computing","doi":"10.1109/FCCM.2009.25","date_updated":"2023-09-26T13:51:44Z","publisher":"IEEE Computer Society","date_created":"2018-04-16T15:05:52Z","author":[{"first_name":"Tobias","last_name":"Schumacher","full_name":"Schumacher, Tobias"},{"last_name":"Plessl","orcid":"0000-0001-5728-9982","full_name":"Plessl, Christian","id":"16153","first_name":"Christian"},{"id":"398","full_name":"Platzner, Marco","last_name":"Platzner","first_name":"Marco"}]}]