[{"publication":"The Journal of Physical Chemistry C","issue":"4","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"27"},{"_id":"230"}],"type":"journal_article","date_created":"2024-06-24T06:10:39Z","intvolume":"       127","date_updated":"2024-06-24T06:30:35Z","publication_status":"published","publication_identifier":{"issn":["1932-7447","1932-7455"]},"author":[{"last_name":"Meier","first_name":"Lukas","full_name":"Meier, Lukas"},{"id":"468","orcid":"0000-0002-2717-5076","last_name":"Schmidt","first_name":"Wolf Gero","full_name":"Schmidt, Wolf Gero"}],"year":"2023","title":"Adsorption of Cyclic (Alkyl) (Amino) Carbenes on Monohydride Si(001) Surfaces: Interface Bonding and Electronic Properties","doi":"10.1021/acs.jpcc.2c07316","language":[{"iso":"eng"}],"project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"mla":"Meier, Lukas, and Wolf Gero Schmidt. “Adsorption of Cyclic (Alkyl) (Amino) Carbenes on Monohydride Si(001) Surfaces: Interface Bonding and Electronic Properties.” <i>The Journal of Physical Chemistry C</i>, vol. 127, no. 4, American Chemical Society (ACS), 2023, pp. 1973–80, doi:<a href=\"https://doi.org/10.1021/acs.jpcc.2c07316\">10.1021/acs.jpcc.2c07316</a>.","ama":"Meier L, Schmidt WG. Adsorption of Cyclic (Alkyl) (Amino) Carbenes on Monohydride Si(001) Surfaces: Interface Bonding and Electronic Properties. <i>The Journal of Physical Chemistry C</i>. 2023;127(4):1973-1980. doi:<a href=\"https://doi.org/10.1021/acs.jpcc.2c07316\">10.1021/acs.jpcc.2c07316</a>","bibtex":"@article{Meier_Schmidt_2023, title={Adsorption of Cyclic (Alkyl) (Amino) Carbenes on Monohydride Si(001) Surfaces: Interface Bonding and Electronic Properties}, volume={127}, DOI={<a href=\"https://doi.org/10.1021/acs.jpcc.2c07316\">10.1021/acs.jpcc.2c07316</a>}, number={4}, journal={The Journal of Physical Chemistry C}, publisher={American Chemical Society (ACS)}, author={Meier, Lukas and Schmidt, Wolf Gero}, year={2023}, pages={1973–1980} }","apa":"Meier, L., &#38; Schmidt, W. G. (2023). Adsorption of Cyclic (Alkyl) (Amino) Carbenes on Monohydride Si(001) Surfaces: Interface Bonding and Electronic Properties. <i>The Journal of Physical Chemistry C</i>, <i>127</i>(4), 1973–1980. <a href=\"https://doi.org/10.1021/acs.jpcc.2c07316\">https://doi.org/10.1021/acs.jpcc.2c07316</a>","ieee":"L. Meier and W. G. Schmidt, “Adsorption of Cyclic (Alkyl) (Amino) Carbenes on Monohydride Si(001) Surfaces: Interface Bonding and Electronic Properties,” <i>The Journal of Physical Chemistry C</i>, vol. 127, no. 4, pp. 1973–1980, 2023, doi: <a href=\"https://doi.org/10.1021/acs.jpcc.2c07316\">10.1021/acs.jpcc.2c07316</a>.","chicago":"Meier, Lukas, and Wolf Gero Schmidt. “Adsorption of Cyclic (Alkyl) (Amino) Carbenes on Monohydride Si(001) Surfaces: Interface Bonding and Electronic Properties.” <i>The Journal of Physical Chemistry C</i> 127, no. 4 (2023): 1973–80. <a href=\"https://doi.org/10.1021/acs.jpcc.2c07316\">https://doi.org/10.1021/acs.jpcc.2c07316</a>.","short":"L. Meier, W.G. Schmidt, The Journal of Physical Chemistry C 127 (2023) 1973–1980."},"status":"public","volume":127,"user_id":"16199","_id":"54850","publisher":"American Chemical Society (ACS)","page":"1973-1980"},{"oa":"1","citation":{"chicago":"Farheen, Henna, Andreas Strauch, J. Christoph Scheytt, Viktor Myroshnychenko, and Jens Förstner. “Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays.” <i>Photonics and Nanostructures - Fundamentals and Applications</i> 58 (2023): 101207. <a href=\"https://doi.org/10.1016/j.photonics.2023.101207\">https://doi.org/10.1016/j.photonics.2023.101207</a>.","short":"H. Farheen, A. Strauch, J.C. Scheytt, V. Myroshnychenko, J. Förstner, Photonics and Nanostructures - Fundamentals and Applications 58 (2023) 101207.","apa":"Farheen, H., Strauch, A., Scheytt, J. C., Myroshnychenko, V., &#38; Förstner, J. (2023). Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays. <i>Photonics and Nanostructures - Fundamentals and Applications</i>, <i>58</i>, 101207. <a href=\"https://doi.org/10.1016/j.photonics.2023.101207\">https://doi.org/10.1016/j.photonics.2023.101207</a>","ieee":"H. Farheen, A. Strauch, J. C. Scheytt, V. Myroshnychenko, and J. Förstner, “Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays,” <i>Photonics and Nanostructures - Fundamentals and Applications</i>, vol. 58, p. 101207, 2023, doi: <a href=\"https://doi.org/10.1016/j.photonics.2023.101207\">10.1016/j.photonics.2023.101207</a>.","ama":"Farheen H, Strauch A, Scheytt JC, Myroshnychenko V, Förstner J. Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays. <i>Photonics and Nanostructures - Fundamentals and Applications</i>. 2023;58:101207. doi:<a href=\"https://doi.org/10.1016/j.photonics.2023.101207\">10.1016/j.photonics.2023.101207</a>","bibtex":"@article{Farheen_Strauch_Scheytt_Myroshnychenko_Förstner_2023, title={Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays}, volume={58}, DOI={<a href=\"https://doi.org/10.1016/j.photonics.2023.101207\">10.1016/j.photonics.2023.101207</a>}, journal={Photonics and Nanostructures - Fundamentals and Applications}, publisher={Elsevier BV}, author={Farheen, Henna and Strauch, Andreas and Scheytt, J. Christoph and Myroshnychenko, Viktor and Förstner, Jens}, year={2023}, pages={101207} }","mla":"Farheen, Henna, et al. “Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays.” <i>Photonics and Nanostructures - Fundamentals and Applications</i>, vol. 58, Elsevier BV, 2023, p. 101207, doi:<a href=\"https://doi.org/10.1016/j.photonics.2023.101207\">10.1016/j.photonics.2023.101207</a>."},"file_date_updated":"2023-12-21T09:34:17Z","project":[{"name":"PhoQC: PhoQC: Photonisches Quantencomputing","_id":"266","grant_number":"PROFILNRW-2020-067"},{"_id":"167","grant_number":"231447078","name":"TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle eines photonischen Quantensystems (B06*)"},{"name":"TRR 142 - B: TRR 142 - Project Area B","_id":"55"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"_id":"50012","publisher":"Elsevier BV","page":"101207","volume":58,"ddc":["530"],"user_id":"158","status":"public","has_accepted_license":"1","date_created":"2023-12-21T09:30:03Z","file":[{"date_created":"2023-12-21T09:34:17Z","creator":"fossie","file_id":"50013","content_type":"application/pdf","relation":"main_file","date_updated":"2023-12-21T09:34:17Z","file_name":"2ß23-12 Farheen - PNFA - Optimized, highly efficient silicon antennas for optical phased arrays.pdf","access_level":"open_access","file_size":3339442}],"department":[{"_id":"61"},{"_id":"230"},{"_id":"429"},{"_id":"58"}],"type":"journal_article","keyword":["tet_topic_opticalantenna"],"publication":"Photonics and Nanostructures - Fundamentals and Applications","related_material":{"link":[{"url":"https://doi.org/10.5281/zenodo.10044122","relation":"research_data"}]},"abstract":[{"text":"Silicon photonics, in conjunction with complementary metal-oxide-semiconductor (CMOS) fabrication, has greatly enhanced the development of integrated optical phased arrays. This facilitates a dynamic control of light in a compact form factor that enables the synthesis of arbitrary complex wavefronts in the infrared spectrum. We numerically demonstrate a large-scale two-dimensional silicon-based optical phased array (OPA) composed of nanoantennas with circular gratings that are balanced in power and aligned in phase, required for producing elegant radiation patterns in the far-field. For a wavelength of 1.55 μm, we optimize two antennas for the OPA exhibiting an upward radiation efficiency as high as 90%, with almost 6.8% of optical power concentrated in the field of view. Additionally, we believe that the proposed OPAs can be easily fabricated and would have the ability to generate complex holographic images, rendering them an attractive candidate for a wide range of applications like LiDAR sensors, optical trapping, optogenetic stimulation, and augmented-reality displays.","lang":"eng"}],"language":[{"iso":"eng"}],"doi":"10.1016/j.photonics.2023.101207","author":[{"id":"53444","full_name":"Farheen, Henna","orcid":"0000-0001-7730-3489","first_name":"Henna","last_name":"Farheen"},{"first_name":"Andreas","last_name":"Strauch","full_name":"Strauch, Andreas"},{"full_name":"Scheytt, J. Christoph","first_name":"J. Christoph","last_name":"Scheytt","orcid":"0000-0002-5950-6618 ","id":"37144"},{"id":"46371","full_name":"Myroshnychenko, Viktor","first_name":"Viktor","last_name":"Myroshnychenko"},{"id":"158","full_name":"Förstner, Jens","first_name":"Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner"}],"publication_identifier":{"issn":["1569-4410"]},"year":"2023","title":"Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays","intvolume":"        58","date_updated":"2024-07-22T07:44:33Z","publication_status":"published"},{"_id":"50466","language":[{"iso":"eng"}],"publisher":"IEEE","doi":"10.1109/ipc57732.2023.10360519","user_id":"158","author":[{"id":"53444","full_name":"Farheen, Henna","first_name":"Henna","orcid":"0000-0001-7730-3489","last_name":"Farheen"},{"last_name":"Joshi","first_name":"S.","full_name":"Joshi, S."},{"id":"37144","last_name":"Scheytt","first_name":"J. Christoph","orcid":"0000-0002-5950-6618 ","full_name":"Scheytt, J. Christoph"},{"id":"46371","first_name":"Viktor","last_name":"Myroshnychenko","full_name":"Myroshnychenko, Viktor"},{"orcid":"0000-0001-7059-9862","last_name":"Förstner","first_name":"Jens","full_name":"Förstner, Jens","id":"158"}],"title":"Increasing the upward radiation efficiency of optical phased arrays using asymmetric silicon horn antennas","year":"2023","status":"public","date_updated":"2024-07-22T07:48:53Z","publication_status":"published","date_created":"2024-01-12T07:37:54Z","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"type":"conference","keyword":["tet_topic_opticalantenna"],"citation":{"mla":"Farheen, Henna, et al. “Increasing the Upward Radiation Efficiency of Optical Phased Arrays Using Asymmetric Silicon Horn Antennas.” <i>2023 IEEE Photonics Conference (IPC)</i>, IEEE, 2023, doi:<a href=\"https://doi.org/10.1109/ipc57732.2023.10360519\">10.1109/ipc57732.2023.10360519</a>.","bibtex":"@inproceedings{Farheen_Joshi_Scheytt_Myroshnychenko_Förstner_2023, title={Increasing the upward radiation efficiency of optical phased arrays using asymmetric silicon horn antennas}, DOI={<a href=\"https://doi.org/10.1109/ipc57732.2023.10360519\">10.1109/ipc57732.2023.10360519</a>}, booktitle={2023 IEEE Photonics Conference (IPC)}, publisher={IEEE}, author={Farheen, Henna and Joshi, S. and Scheytt, J. Christoph and Myroshnychenko, Viktor and Förstner, Jens}, year={2023} }","ama":"Farheen H, Joshi S, Scheytt JC, Myroshnychenko V, Förstner J. Increasing the upward radiation efficiency of optical phased arrays using asymmetric silicon horn antennas. In: <i>2023 IEEE Photonics Conference (IPC)</i>. IEEE; 2023. doi:<a href=\"https://doi.org/10.1109/ipc57732.2023.10360519\">10.1109/ipc57732.2023.10360519</a>","ieee":"H. Farheen, S. Joshi, J. C. Scheytt, V. Myroshnychenko, and J. Förstner, “Increasing the upward radiation efficiency of optical phased arrays using asymmetric silicon horn antennas,” 2023, doi: <a href=\"https://doi.org/10.1109/ipc57732.2023.10360519\">10.1109/ipc57732.2023.10360519</a>.","apa":"Farheen, H., Joshi, S., Scheytt, J. C., Myroshnychenko, V., &#38; Förstner, J. (2023). Increasing the upward radiation efficiency of optical phased arrays using asymmetric silicon horn antennas. <i>2023 IEEE Photonics Conference (IPC)</i>. <a href=\"https://doi.org/10.1109/ipc57732.2023.10360519\">https://doi.org/10.1109/ipc57732.2023.10360519</a>","chicago":"Farheen, Henna, S. Joshi, J. Christoph Scheytt, Viktor Myroshnychenko, and Jens Förstner. “Increasing the Upward Radiation Efficiency of Optical Phased Arrays Using Asymmetric Silicon Horn Antennas.” In <i>2023 IEEE Photonics Conference (IPC)</i>. IEEE, 2023. <a href=\"https://doi.org/10.1109/ipc57732.2023.10360519\">https://doi.org/10.1109/ipc57732.2023.10360519</a>.","short":"H. Farheen, S. Joshi, J.C. Scheytt, V. Myroshnychenko, J. Förstner, in: 2023 IEEE Photonics Conference (IPC), IEEE, 2023."},"publication":"2023 IEEE Photonics Conference (IPC)","project":[{"name":"PhoQC: PhoQC: Photonisches Quantencomputing","_id":"266","grant_number":"PROFILNRW-2020-067"},{"grant_number":"231447078","_id":"167","name":"TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle eines photonischen Quantensystems (B06*)"},{"name":"TRR 142 - C05: TRR 142 - Nichtlineare optische Oberflächen basierend auf ZnO-plasmonischen Hybrid-Nanostrukturen (C05)","_id":"75","grant_number":"231447078"},{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"abstract":[{"lang":"eng","text":"A key challenge in designing efficient optical phased arrays is the lack of a well-designed radiator. This work explores horn antennas numerically optimized to target high upward radiation efficiency to be employed in silicon-based phased arrays capable of producing elegant radiation patterns in the far-field."}]},{"ddc":["510"],"user_id":"85279","editor":[{"first_name":"F","last_name":"Nielsen","full_name":"Nielsen, F"},{"full_name":"Barbaresco, F","first_name":"F","last_name":"Barbaresco"}],"volume":14071,"page":"569-579","_id":"42163","publisher":"Springer, Cham.","has_accepted_license":"1","status":"public","conference":{"location":"Saint-Malo, Palais du Grand Large, France","name":"  GSI'23 6th International Conference on Geometric Science of Information","start_date":"2023-08-30","end_date":"2023-09-01"},"oa":"1","external_id":{"arxiv":["2302.08232 "]},"quality_controlled":"1","project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"file_date_updated":"2023-08-02T12:04:17Z","citation":{"ama":"Offen C, Ober-Blöbaum S. Learning discrete Lagrangians for variational PDEs from data and detection of travelling waves. In: Nielsen F, Barbaresco F, eds. <i>Geometric Science of Information</i>. Vol 14071. Lecture Notes in Computer Science (LNCS). Springer, Cham.; 2023:569-579. doi:<a href=\"https://doi.org/10.1007/978-3-031-38271-0_57\">10.1007/978-3-031-38271-0_57</a>","bibtex":"@inproceedings{Offen_Ober-Blöbaum_2023, series={Lecture Notes in Computer Science (LNCS)}, title={Learning discrete Lagrangians for variational PDEs from data and detection of travelling waves}, volume={14071}, DOI={<a href=\"https://doi.org/10.1007/978-3-031-38271-0_57\">10.1007/978-3-031-38271-0_57</a>}, booktitle={Geometric Science of Information}, publisher={Springer, Cham.}, author={Offen, Christian and Ober-Blöbaum, Sina}, editor={Nielsen, F and Barbaresco, F}, year={2023}, pages={569–579}, collection={Lecture Notes in Computer Science (LNCS)} }","mla":"Offen, Christian, and Sina Ober-Blöbaum. “Learning Discrete Lagrangians for Variational PDEs from Data and Detection of Travelling Waves.” <i>Geometric Science of Information</i>, edited by F Nielsen and F Barbaresco, vol. 14071, Springer, Cham., 2023, pp. 569–79, doi:<a href=\"https://doi.org/10.1007/978-3-031-38271-0_57\">10.1007/978-3-031-38271-0_57</a>.","chicago":"Offen, Christian, and Sina Ober-Blöbaum. “Learning Discrete Lagrangians for Variational PDEs from Data and Detection of Travelling Waves.” In <i>Geometric Science of Information</i>, edited by F Nielsen and F Barbaresco, 14071:569–79. Lecture Notes in Computer Science (LNCS). Springer, Cham., 2023. <a href=\"https://doi.org/10.1007/978-3-031-38271-0_57\">https://doi.org/10.1007/978-3-031-38271-0_57</a>.","short":"C. Offen, S. Ober-Blöbaum, in: F. Nielsen, F. Barbaresco (Eds.), Geometric Science of Information, Springer, Cham., 2023, pp. 569–579.","apa":"Offen, C., &#38; Ober-Blöbaum, S. (2023). Learning discrete Lagrangians for variational PDEs from data and detection of travelling waves. In F. Nielsen &#38; F. Barbaresco (Eds.), <i>Geometric Science of Information</i> (Vol. 14071, pp. 569–579). Springer, Cham. <a href=\"https://doi.org/10.1007/978-3-031-38271-0_57\">https://doi.org/10.1007/978-3-031-38271-0_57</a>","ieee":"C. Offen and S. Ober-Blöbaum, “Learning discrete Lagrangians for variational PDEs from data and detection of travelling waves,” in <i>Geometric Science of Information</i>, Saint-Malo, Palais du Grand Large, France, 2023, vol. 14071, pp. 569–579, doi: <a href=\"https://doi.org/10.1007/978-3-031-38271-0_57\">10.1007/978-3-031-38271-0_57</a>."},"doi":"10.1007/978-3-031-38271-0_57","series_title":"Lecture Notes in Computer Science (LNCS)","language":[{"iso":"eng"}],"date_updated":"2024-08-12T13:46:29Z","publication_status":"published","intvolume":"     14071","year":"2023","title":"Learning discrete Lagrangians for variational PDEs from data and detection of travelling waves","publication_identifier":{"eisbn":["978-3-031-38271-0"]},"author":[{"full_name":"Offen, Christian","first_name":"Christian","orcid":"0000-0002-5940-8057","last_name":"Offen","id":"85279"},{"id":"16494","full_name":"Ober-Blöbaum, Sina","first_name":"Sina","last_name":"Ober-Blöbaum"}],"type":"conference","keyword":["System identification","discrete Lagrangians","travelling waves"],"department":[{"_id":"636"}],"file":[{"description":"The article shows how to learn models of dynamical systems\nfrom data which are governed by an unknown variational PDE. Rather\nthan employing reduction techniques, we learn a discrete field theory\ngoverned by a discrete Lagrangian density Ld that is modelled as a neural network. Careful regularisation of the loss function for training Ld is\nnecessary to obtain a field theory that is suitable for numerical computations: we derive a regularisation term which optimises the solvability of\nthe discrete Euler–Lagrange equations. Secondly, we develop a method to\nfind solutions to machine learned discrete field theories which constitute\ntravelling waves of the underlying continuous PDE.","date_created":"2023-08-02T12:04:17Z","creator":"coffen","title":"Learning discrete Lagrangians for variational PDEs from data and detection of travelling waves","file_id":"46273","content_type":"application/pdf","relation":"main_file","date_updated":"2023-08-02T12:04:17Z","file_name":"LDensityLearning.pdf","access_level":"open_access","file_size":1938962}],"date_created":"2023-02-16T11:32:48Z","related_material":{"link":[{"relation":"software","url":"https://github.com/Christian-Offen/LagrangianDensityML","description":"GitHub"}]},"abstract":[{"text":"The article shows how to learn models of dynamical systems from data which are governed by an unknown variational PDE. Rather than employing reduction techniques, we learn a discrete field theory governed by a discrete Lagrangian density $L_d$ that is modelled as a neural network. Careful regularisation of the loss function for training $L_d$ is necessary to obtain a field theory that is suitable for numerical computations: we derive a regularisation term which optimises the solvability of the discrete Euler--Lagrange equations. Secondly, we develop a method to find solutions to machine learned discrete field theories which constitute travelling waves of the underlying continuous PDE.","lang":"eng"}],"publication":"Geometric Science of Information"},{"oa":"1","citation":{"mla":"Alhaddad, Samer, et al. “Numerical Study of Light Backscattering from Layers of Absorbing Irregular Particles Larger than the Wavelength.” <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i>, vol. 302, 108557, Elsevier BV, 2023, doi:<a href=\"https://doi.org/10.1016/j.jqsrt.2023.108557\">10.1016/j.jqsrt.2023.108557</a>.","ama":"Alhaddad S, Förstner J, Grynko Y. Numerical study of light backscattering from layers of absorbing irregular particles larger than the wavelength. <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i>. 2023;302. doi:<a href=\"https://doi.org/10.1016/j.jqsrt.2023.108557\">10.1016/j.jqsrt.2023.108557</a>","bibtex":"@article{Alhaddad_Förstner_Grynko_2023, title={Numerical study of light backscattering from layers of absorbing irregular particles larger than the wavelength}, volume={302}, DOI={<a href=\"https://doi.org/10.1016/j.jqsrt.2023.108557\">10.1016/j.jqsrt.2023.108557</a>}, number={108557}, journal={Journal of Quantitative Spectroscopy and Radiative Transfer}, publisher={Elsevier BV}, author={Alhaddad, Samer and Förstner, Jens and Grynko, Yevgen}, year={2023} }","apa":"Alhaddad, S., Förstner, J., &#38; Grynko, Y. (2023). Numerical study of light backscattering from layers of absorbing irregular particles larger than the wavelength. <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i>, <i>302</i>, Article 108557. <a href=\"https://doi.org/10.1016/j.jqsrt.2023.108557\">https://doi.org/10.1016/j.jqsrt.2023.108557</a>","ieee":"S. Alhaddad, J. Förstner, and Y. Grynko, “Numerical study of light backscattering from layers of absorbing irregular particles larger than the wavelength,” <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i>, vol. 302, Art. no. 108557, 2023, doi: <a href=\"https://doi.org/10.1016/j.jqsrt.2023.108557\">10.1016/j.jqsrt.2023.108557</a>.","short":"S. Alhaddad, J. Förstner, Y. Grynko, Journal of Quantitative Spectroscopy and Radiative Transfer 302 (2023).","chicago":"Alhaddad, Samer, Jens Förstner, and Yevgen Grynko. “Numerical Study of Light Backscattering from Layers of Absorbing Irregular Particles Larger than the Wavelength.” <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i> 302 (2023). <a href=\"https://doi.org/10.1016/j.jqsrt.2023.108557\">https://doi.org/10.1016/j.jqsrt.2023.108557</a>."},"file_date_updated":"2023-03-15T17:35:29Z","project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"_id":"43018","publisher":"Elsevier BV","volume":302,"ddc":["530"],"user_id":"158","status":"public","has_accepted_license":"1","date_created":"2023-03-14T12:32:54Z","file":[{"date_created":"2023-03-15T15:58:15Z","creator":"fossie","content_type":"application/pdf","file_id":"43028","date_updated":"2023-03-15T15:58:15Z","relation":"main_file","file_size":1508833,"access_level":"local","file_name":"2023-03 Alhaddad - JQSRT - Numerical study of light backscattering from layers of absorbing particles larger than the wavelength.pdf"},{"creator":"fossie","date_created":"2023-03-15T17:35:29Z","relation":"main_file","date_updated":"2023-03-15T17:35:29Z","file_name":"2023-03 Alhaddad - JQSRT - Numerical study of light backscattering from layers of absorbing particles larger than the wavelength (accepted manuscript).pdf","access_level":"open_access","file_size":4254386,"file_id":"43029","content_type":"application/pdf"}],"department":[{"_id":"61"}],"keyword":["tet_topic_scattering"],"type":"journal_article","publication":"Journal of Quantitative Spectroscopy and Radiative Transfer","language":[{"iso":"eng"}],"article_number":"108557","doi":"10.1016/j.jqsrt.2023.108557","publication_identifier":{"issn":["0022-4073"]},"author":[{"id":"42456","full_name":"Alhaddad, Samer","last_name":"Alhaddad","first_name":"Samer"},{"full_name":"Förstner, Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862","first_name":"Jens","id":"158"},{"first_name":"Yevgen","last_name":"Grynko","full_name":"Grynko, Yevgen","id":"26059"}],"title":"Numerical study of light backscattering from layers of absorbing irregular particles larger than the wavelength","year":"2023","intvolume":"       302","date_updated":"2023-03-15T17:36:13Z","publication_status":"published"},{"date_updated":"2023-04-19T09:17:30Z","title":"Bestimmung der Volumenviskosität mittels akustischer Absorptionsmessung","status":"public","year":"2023","author":[{"id":"11829","full_name":"Claes, Leander","last_name":"Claes","first_name":"Leander","orcid":"0000-0002-4393-268X"}],"conference":{"end_date":"2023-03-09","location":"Hamburg","name":"DAGA 2023 - 49. Jahrestagung für Akustik","start_date":"2023-03-06"},"user_id":"11829","page":"7-14","language":[{"iso":"eng"}],"_id":"43229","project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"publication":"Fortschritte der Akustik - DAGA 2023","citation":{"mla":"Claes, Leander. “Bestimmung Der Volumenviskosität Mittels Akustischer Absorptionsmessung.” <i>Fortschritte Der Akustik - DAGA 2023</i>, 2023, pp. 7–14.","bibtex":"@inproceedings{Claes_2023, title={Bestimmung der Volumenviskosität mittels akustischer Absorptionsmessung}, booktitle={Fortschritte der Akustik - DAGA 2023}, author={Claes, Leander}, year={2023}, pages={7–14} }","ama":"Claes L. Bestimmung der Volumenviskosität mittels akustischer Absorptionsmessung. In: <i>Fortschritte Der Akustik - DAGA 2023</i>. ; 2023:7-14.","ieee":"L. Claes, “Bestimmung der Volumenviskosität mittels akustischer Absorptionsmessung,” in <i>Fortschritte der Akustik - DAGA 2023</i>, Hamburg, 2023, pp. 7–14.","apa":"Claes, L. (2023). Bestimmung der Volumenviskosität mittels akustischer Absorptionsmessung. <i>Fortschritte Der Akustik - DAGA 2023</i>, 7–14.","short":"L. Claes, in: Fortschritte Der Akustik - DAGA 2023, 2023, pp. 7–14.","chicago":"Claes, Leander. “Bestimmung Der Volumenviskosität Mittels Akustischer Absorptionsmessung.” In <i>Fortschritte Der Akustik - DAGA 2023</i>, 7–14, 2023."},"type":"conference","department":[{"_id":"49"}],"date_created":"2023-03-30T13:13:50Z"},{"citation":{"apa":"Rose, H., Vasil’ev, A. N., Tikhonova, O. V., Meier, T., &#38; Sharapova, P. (2023). Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field. <i>Physical Review A</i>, <i>107</i>(1), Article 013703. <a href=\"https://doi.org/10.1103/physreva.107.013703\">https://doi.org/10.1103/physreva.107.013703</a>","ieee":"H. Rose, A. N. Vasil’ev, O. V. Tikhonova, T. Meier, and P. Sharapova, “Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field,” <i>Physical Review A</i>, vol. 107, no. 1, Art. no. 013703, 2023, doi: <a href=\"https://doi.org/10.1103/physreva.107.013703\">10.1103/physreva.107.013703</a>.","chicago":"Rose, Hendrik, A. N. Vasil’ev, O. V. Tikhonova, Torsten Meier, and Polina Sharapova. “Quantum-Optical Excitations of Semiconductor Nanostructures in a Microcavity Using a Two-Band Model and a Single-Mode Quantum Field.” <i>Physical Review A</i> 107, no. 1 (2023). <a href=\"https://doi.org/10.1103/physreva.107.013703\">https://doi.org/10.1103/physreva.107.013703</a>.","short":"H. Rose, A.N. Vasil’ev, O.V. Tikhonova, T. Meier, P. Sharapova, Physical Review A 107 (2023).","mla":"Rose, Hendrik, et al. “Quantum-Optical Excitations of Semiconductor Nanostructures in a Microcavity Using a Two-Band Model and a Single-Mode Quantum Field.” <i>Physical Review A</i>, vol. 107, no. 1, 013703, American Physical Society (APS), 2023, doi:<a href=\"https://doi.org/10.1103/physreva.107.013703\">10.1103/physreva.107.013703</a>.","ama":"Rose H, Vasil’ev AN, Tikhonova OV, Meier T, Sharapova P. Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field. <i>Physical Review A</i>. 2023;107(1). doi:<a href=\"https://doi.org/10.1103/physreva.107.013703\">10.1103/physreva.107.013703</a>","bibtex":"@article{Rose_Vasil’ev_Tikhonova_Meier_Sharapova_2023, title={Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field}, volume={107}, DOI={<a href=\"https://doi.org/10.1103/physreva.107.013703\">10.1103/physreva.107.013703</a>}, number={1013703}, journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Rose, Hendrik and Vasil’ev, A. N. and Tikhonova, O. V. and Meier, Torsten and Sharapova, Polina}, year={2023} }"},"project":[{"_id":"53","name":"TRR 142: TRR 142"},{"_id":"54","name":"TRR 142 - A: TRR 142 - Project Area A"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"name":"TRR 142 - A02: TRR 142 - Subproject A02","_id":"59"}],"status":"public","_id":"37280","publisher":"American Physical Society (APS)","volume":107,"user_id":"16199","issue":"1","publication":"Physical Review A","date_created":"2023-01-18T10:27:21Z","department":[{"_id":"15"},{"_id":"569"},{"_id":"170"},{"_id":"293"},{"_id":"230"},{"_id":"623"},{"_id":"35"}],"type":"journal_article","author":[{"full_name":"Rose, Hendrik","last_name":"Rose","first_name":"Hendrik","orcid":"0000-0002-3079-5428","id":"55958"},{"full_name":"Vasil'ev, A. N.","last_name":"Vasil'ev","first_name":"A. N."},{"full_name":"Tikhonova, O. V.","last_name":"Tikhonova","first_name":"O. V."},{"full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","first_name":"Torsten","last_name":"Meier","id":"344"},{"full_name":"Sharapova, Polina","first_name":"Polina","last_name":"Sharapova","id":"60286"}],"publication_identifier":{"issn":["2469-9926","2469-9934"]},"year":"2023","title":"Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field","intvolume":"       107","date_updated":"2023-04-21T11:06:33Z","publication_status":"published","language":[{"iso":"eng"}],"article_number":"013703","doi":"10.1103/physreva.107.013703"},{"department":[{"_id":"9"},{"_id":"145"}],"type":"conference","date_created":"2023-04-04T10:41:53Z","project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"mla":"Bernemann, Sören Antonius, et al. <i>Computerunterstützte Strömungsuntersuchung von landwirtschaftlichen Abfällen</i>. 2023.","bibtex":"@inproceedings{Bernemann_Maćkowiak_Maćkowiak_Kenig_2023, title={Computerunterstützte Strömungsuntersuchung von landwirtschaftlichen Abfällen}, author={Bernemann, Sören Antonius and Maćkowiak, Jan and Maćkowiak, Jerzy and Kenig, Eugeny}, year={2023} }","ama":"Bernemann SA, Maćkowiak J, Maćkowiak J, Kenig E. Computerunterstützte Strömungsuntersuchung von landwirtschaftlichen Abfällen. In: ; 2023.","ieee":"S. A. Bernemann, J. Maćkowiak, J. Maćkowiak, and E. Kenig, “Computerunterstützte Strömungsuntersuchung von landwirtschaftlichen Abfällen,” presented at the Jahrestreffen Dechema-Fachgruppen AT, GAS, MPH, PMT 2023 , Paderborn, 2023.","apa":"Bernemann, S. A., Maćkowiak, J., Maćkowiak, J., &#38; Kenig, E. (2023). <i>Computerunterstützte Strömungsuntersuchung von landwirtschaftlichen Abfällen</i>. Jahrestreffen Dechema-Fachgruppen AT, GAS, MPH, PMT 2023 , Paderborn.","chicago":"Bernemann, Sören Antonius, Jan Maćkowiak, Jerzy Maćkowiak, and Eugeny Kenig. “Computerunterstützte Strömungsuntersuchung von landwirtschaftlichen Abfällen,” 2023.","short":"S.A. Bernemann, J. Maćkowiak, J. Maćkowiak, E. Kenig, in: 2023."},"user_id":"70108","_id":"43393","language":[{"iso":"ger"}],"date_updated":"2023-04-04T11:03:31Z","conference":{"end_date":"2023-03-30","location":"Paderborn","name":"Jahrestreffen Dechema-Fachgruppen AT, GAS, MPH, PMT 2023 ","start_date":"2023-03-29"},"author":[{"id":"70108","full_name":"Bernemann, Sören Antonius","first_name":"Sören Antonius","last_name":"Bernemann"},{"full_name":"Maćkowiak, Jan","first_name":"Jan","last_name":"Maćkowiak"},{"full_name":"Maćkowiak, Jerzy","first_name":"Jerzy","last_name":"Maćkowiak"},{"full_name":"Kenig, Eugeny","last_name":"Kenig","first_name":"Eugeny","id":"665"}],"year":"2023","title":"Computerunterstützte Strömungsuntersuchung von landwirtschaftlichen Abfällen","status":"public"},{"citation":{"ama":"Dechert C, Kengni Nkouemou A, Kenig EY. Vergleichende Untersuchung der Wirkung verschiedener Mikrostrukturen auf die Flüssigkeitsausbreitung. In: ; 2023.","bibtex":"@inproceedings{Dechert_Kengni Nkouemou_Kenig_2023, title={Vergleichende Untersuchung der Wirkung verschiedener Mikrostrukturen auf die Flüssigkeitsausbreitung}, author={Dechert, Christopher and Kengni Nkouemou, Augustin and Kenig, Eugeny Y.}, year={2023} }","mla":"Dechert, Christopher, et al. <i>Vergleichende Untersuchung Der Wirkung Verschiedener Mikrostrukturen Auf Die Flüssigkeitsausbreitung</i>. 2023.","short":"C. Dechert, A. Kengni Nkouemou, E.Y. Kenig, in: 2023.","chicago":"Dechert, Christopher, Augustin Kengni Nkouemou, and Eugeny Y. Kenig. “Vergleichende Untersuchung Der Wirkung Verschiedener Mikrostrukturen Auf Die Flüssigkeitsausbreitung,” 2023.","apa":"Dechert, C., Kengni Nkouemou, A., &#38; Kenig, E. Y. (2023). <i>Vergleichende Untersuchung der Wirkung verschiedener Mikrostrukturen auf die Flüssigkeitsausbreitung</i>. Jahrestreffen der Fachgruppen Fluidverfahrenstechnik und Adsorption, Frankfurt am Main.","ieee":"C. Dechert, A. Kengni Nkouemou, and E. Y. Kenig, “Vergleichende Untersuchung der Wirkung verschiedener Mikrostrukturen auf die Flüssigkeitsausbreitung,” presented at the Jahrestreffen der Fachgruppen Fluidverfahrenstechnik und Adsorption, Frankfurt am Main, 2023."},"project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"date_created":"2023-03-27T15:26:18Z","type":"conference_abstract","department":[{"_id":"9"},{"_id":"145"}],"status":"public","year":"2023","title":"Vergleichende Untersuchung der Wirkung verschiedener Mikrostrukturen auf die Flüssigkeitsausbreitung","author":[{"last_name":"Dechert","first_name":"Christopher","full_name":"Dechert, Christopher","id":"69828"},{"full_name":"Kengni Nkouemou, Augustin","last_name":"Kengni Nkouemou","first_name":"Augustin"},{"first_name":"Eugeny Y.","last_name":"Kenig","full_name":"Kenig, Eugeny Y.","id":"665"}],"conference":{"start_date":"2023-03-21","name":"Jahrestreffen der Fachgruppen Fluidverfahrenstechnik und Adsorption","location":"Frankfurt am Main","end_date":"2023-03-23"},"date_updated":"2023-04-19T11:41:08Z","language":[{"iso":"eng"}],"_id":"43111","user_id":"665"},{"language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}],"doi":"10.1021/acsphotonics.2c01967","author":[{"full_name":"Hähnel, David","last_name":"Hähnel","first_name":"David"},{"orcid":"0000-0001-7059-9862","first_name":"Jens","last_name":"Förstner","full_name":"Förstner, Jens","id":"158"},{"id":"46371","full_name":"Myroshnychenko, Viktor","first_name":"Viktor","last_name":"Myroshnychenko"}],"publication_identifier":{"issn":["2330-4022","2330-4022"]},"title":"Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces","year":"2023","date_updated":"2023-06-13T09:49:12Z","publication_status":"published","date_created":"2023-06-13T09:43:25Z","file":[{"file_id":"45597","content_type":"application/pdf","file_name":"2023-06 Hähnel - ACS Photonics - Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces.pdf","file_size":5382111,"access_level":"open_access","relation":"main_file","date_updated":"2023-06-13T09:48:17Z","date_created":"2023-06-13T09:48:17Z","creator":"fossie"}],"department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"type":"journal_article","keyword":["tet_topic_meta"],"publication":"ACS Photonics","abstract":[{"lang":"eng","text":"Dielectric metasurfaces provide a unique platform for efficient harmonic generation and optical wavefront manipulation at the nanoscale. Tailoring phase and amplitude of a nonlinearly generated wave with a high emission efficiency using resonance-based metasurfaces is a challenging task that often requires state-of-the-art numerical methods. Here, we propose a simple yet effective approach combining a sampling method with a Monte Carlo approach to design the third-harmonic wavefront generated by all-dielectric metasurfaces composed of elliptical silicon nanodisks. Using this approach, we theoretically demonstrate the full nonlinear 2π phase control with a uniform and highest possible amplitude in the considered parameter space, allowing us to design metasurfaces operating as third harmonic beam deflectors capable of steering light into a desired direction with high emission efficiency. The TH beam deflection with a record calculated average conversion efficiency of 1.2 × 10–1 W–2 is achieved. We anticipate that the proposed approach will be widely applied as alternative to commonly used optimization algorithms with higher complexity and implementation effort for the design of metasurfaces with other holographic functionalities."}],"_id":"45596","publisher":"American Chemical Society (ACS)","ddc":["530"],"user_id":"158","status":"public","has_accepted_license":"1","oa":"1","citation":{"ama":"Hähnel D, Förstner J, Myroshnychenko V. Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces. <i>ACS Photonics</i>. Published online 2023. doi:<a href=\"https://doi.org/10.1021/acsphotonics.2c01967\">10.1021/acsphotonics.2c01967</a>","bibtex":"@article{Hähnel_Förstner_Myroshnychenko_2023, title={Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces}, DOI={<a href=\"https://doi.org/10.1021/acsphotonics.2c01967\">10.1021/acsphotonics.2c01967</a>}, journal={ACS Photonics}, publisher={American Chemical Society (ACS)}, author={Hähnel, David and Förstner, Jens and Myroshnychenko, Viktor}, year={2023} }","mla":"Hähnel, David, et al. “Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces.” <i>ACS Photonics</i>, American Chemical Society (ACS), 2023, doi:<a href=\"https://doi.org/10.1021/acsphotonics.2c01967\">10.1021/acsphotonics.2c01967</a>.","short":"D. Hähnel, J. Förstner, V. Myroshnychenko, ACS Photonics (2023).","chicago":"Hähnel, David, Jens Förstner, and Viktor Myroshnychenko. “Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces.” <i>ACS Photonics</i>, 2023. <a href=\"https://doi.org/10.1021/acsphotonics.2c01967\">https://doi.org/10.1021/acsphotonics.2c01967</a>.","apa":"Hähnel, D., Förstner, J., &#38; Myroshnychenko, V. (2023). Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces. <i>ACS Photonics</i>. <a href=\"https://doi.org/10.1021/acsphotonics.2c01967\">https://doi.org/10.1021/acsphotonics.2c01967</a>","ieee":"D. Hähnel, J. Förstner, and V. Myroshnychenko, “Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces,” <i>ACS Photonics</i>, 2023, doi: <a href=\"https://doi.org/10.1021/acsphotonics.2c01967\">10.1021/acsphotonics.2c01967</a>."},"file_date_updated":"2023-06-13T09:48:17Z","project":[{"_id":"167","grant_number":"231447078","name":"TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle eines photonischen Quantensystems (B06*)"},{"_id":"55","name":"TRR 142 - B: TRR 142 - Project Area B"},{"_id":"53","grant_number":"231447078","name":"TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"_id":"75","grant_number":"231447078","name":"TRR 142 - C05: TRR 142 - Nichtlineare optische Oberflächen basierend auf ZnO-plasmonischen Hybrid-Nanostrukturen (C05)"},{"_id":"56","name":"TRR 142 - C: TRR 142 - Project Area C"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}]},{"project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"mla":"Meier, Armin, et al. “Diquat Based Dyes: A New Class of Photoredox Catalysts and Their Use in Aerobic Thiocyanation.” <i>Chemistry – A European Journal</i>, vol. 29, no. 22, Wiley, 2023, p. e202203541, doi:<a href=\"https://doi.org/10.1002/chem.202203541\">10.1002/chem.202203541</a>.","bibtex":"@article{Meier_Badalov_Biktagirov_Schmidt_Wilhelm_2023, title={Diquat Based Dyes: A New Class of Photoredox Catalysts and Their Use in Aerobic Thiocyanation}, volume={29}, DOI={<a href=\"https://doi.org/10.1002/chem.202203541\">10.1002/chem.202203541</a>}, number={22}, journal={Chemistry – A European Journal}, publisher={Wiley}, author={Meier, Armin and Badalov, Sabuhi and Biktagirov, Timur and Schmidt, Wolf Gero and Wilhelm, René}, year={2023}, pages={e202203541} }","ama":"Meier A, Badalov S, Biktagirov T, Schmidt WG, Wilhelm R. Diquat Based Dyes: A New Class of Photoredox Catalysts and Their Use in Aerobic Thiocyanation. <i>Chemistry – A European Journal</i>. 2023;29(22):e202203541. doi:<a href=\"https://doi.org/10.1002/chem.202203541\">10.1002/chem.202203541</a>","ieee":"A. Meier, S. Badalov, T. Biktagirov, W. G. Schmidt, and R. Wilhelm, “Diquat Based Dyes: A New Class of Photoredox Catalysts and Their Use in Aerobic Thiocyanation,” <i>Chemistry – A European Journal</i>, vol. 29, no. 22, p. e202203541, 2023, doi: <a href=\"https://doi.org/10.1002/chem.202203541\">10.1002/chem.202203541</a>.","apa":"Meier, A., Badalov, S., Biktagirov, T., Schmidt, W. G., &#38; Wilhelm, R. (2023). Diquat Based Dyes: A New Class of Photoredox Catalysts and Their Use in Aerobic Thiocyanation. <i>Chemistry – A European Journal</i>, <i>29</i>(22), e202203541. <a href=\"https://doi.org/10.1002/chem.202203541\">https://doi.org/10.1002/chem.202203541</a>","chicago":"Meier, Armin, Sabuhi Badalov, Timur Biktagirov, Wolf Gero Schmidt, and René Wilhelm. “Diquat Based Dyes: A New Class of Photoredox Catalysts and Their Use in Aerobic Thiocyanation.” <i>Chemistry – A European Journal</i> 29, no. 22 (2023): e202203541. <a href=\"https://doi.org/10.1002/chem.202203541\">https://doi.org/10.1002/chem.202203541</a>.","short":"A. Meier, S. Badalov, T. Biktagirov, W.G. Schmidt, R. Wilhelm, Chemistry – A European Journal 29 (2023) e202203541."},"oa":"1","status":"public","user_id":"78800","volume":" 29","page":" e202203541","_id":"43827","publisher":"Wiley","extern":"1","abstract":[{"lang":"eng","text":"A series of new organic donor–π–acceptor dyes incorporating a diquat moiety as a novel electron-acceptor unit have been synthesized and characterized. The analytical data were supported by DFT calculations. These dyes were explored in the aerobic thiocyanation of indoles and pyrroles. Here they showed a high photocatalytic activity under visible light, giving isolated yields of up to 97 %. In addition, the photocatalytic activity of standalone diquat and methyl viologen through formation of an electron donor acceptor complex is presented."}],"related_material":{"link":[{"relation":"supplementary_material","url":"https://chemistry-europe.onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fchem.202203541&file=chem202203541-sup-0001-misc_information.pdf"}]},"publication":"Chemistry – A European Journal","issue":"22","keyword":["General Chemistry","Catalysis","Organic Chemistry"],"type":"journal_article","department":[{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"230"}],"date_created":"2023-04-16T18:14:24Z","publication_status":"published","date_updated":"2023-06-26T02:29:15Z","article_type":"original","year":"2023","title":"Diquat Based Dyes: A New Class of Photoredox Catalysts and Their Use in Aerobic Thiocyanation","publication_identifier":{"issn":["0947-6539","1521-3765"]},"author":[{"last_name":"Meier","first_name":"Armin","full_name":"Meier, Armin"},{"orcid":"0000-0002-8481-4161","first_name":"Sabuhi","last_name":"Badalov","full_name":"Badalov, Sabuhi","id":"78800"},{"last_name":"Biktagirov","first_name":"Timur","full_name":"Biktagirov, Timur","id":"65612"},{"id":"468","last_name":"Schmidt","first_name":"Wolf Gero","orcid":"0000-0002-2717-5076","full_name":"Schmidt, Wolf Gero"},{"last_name":"Wilhelm","first_name":"René","full_name":"Wilhelm, René"}],"doi":"10.1002/chem.202203541","main_file_link":[{"url":"https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202203541","open_access":"1"}],"language":[{"iso":"eng"}]},{"project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"_id":"4","name":"SFB 901 - C: SFB 901 - Project Area C"},{"_id":"1","grant_number":"160364472","name":"SFB 901: SFB 901"},{"name":"SFB 901 - C2: SFB 901 - Subproject C2","grant_number":"160364472","_id":"14"}],"quality_controlled":"1","citation":{"bibtex":"@article{Meyer_Kenter_Plessl_2023, title={Multi-FPGA Designs and Scaling of HPC Challenge Benchmarks via MPI and Circuit-Switched Inter-FPGA Networks}, DOI={<a href=\"https://doi.org/10.1145/3576200\">10.1145/3576200</a>}, journal={ACM Transactions on Reconfigurable Technology and Systems}, publisher={Association for Computing Machinery (ACM)}, author={Meyer, Marius and Kenter, Tobias and Plessl, Christian}, year={2023} }","ama":"Meyer M, Kenter T, Plessl C. Multi-FPGA Designs and Scaling of HPC Challenge Benchmarks via MPI and Circuit-Switched Inter-FPGA Networks. <i>ACM Transactions on Reconfigurable Technology and Systems</i>. Published online 2023. doi:<a href=\"https://doi.org/10.1145/3576200\">10.1145/3576200</a>","mla":"Meyer, Marius, et al. “Multi-FPGA Designs and Scaling of HPC Challenge Benchmarks via MPI and Circuit-Switched Inter-FPGA Networks.” <i>ACM Transactions on Reconfigurable Technology and Systems</i>, Association for Computing Machinery (ACM), 2023, doi:<a href=\"https://doi.org/10.1145/3576200\">10.1145/3576200</a>.","short":"M. Meyer, T. Kenter, C. Plessl, ACM Transactions on Reconfigurable Technology and Systems (2023).","chicago":"Meyer, Marius, Tobias Kenter, and Christian Plessl. “Multi-FPGA Designs and Scaling of HPC Challenge Benchmarks via MPI and Circuit-Switched Inter-FPGA Networks.” <i>ACM Transactions on Reconfigurable Technology and Systems</i>, 2023. <a href=\"https://doi.org/10.1145/3576200\">https://doi.org/10.1145/3576200</a>.","ieee":"M. Meyer, T. Kenter, and C. Plessl, “Multi-FPGA Designs and Scaling of HPC Challenge Benchmarks via MPI and Circuit-Switched Inter-FPGA Networks,” <i>ACM Transactions on Reconfigurable Technology and Systems</i>, 2023, doi: <a href=\"https://doi.org/10.1145/3576200\">10.1145/3576200</a>.","apa":"Meyer, M., Kenter, T., &#38; Plessl, C. (2023). Multi-FPGA Designs and Scaling of HPC Challenge Benchmarks via MPI and Circuit-Switched Inter-FPGA Networks. <i>ACM Transactions on Reconfigurable Technology and Systems</i>. <a href=\"https://doi.org/10.1145/3576200\">https://doi.org/10.1145/3576200</a>"},"oa":"1","status":"public","user_id":"24135","_id":"38041","publisher":"Association for Computing Machinery (ACM)","abstract":[{"text":"<jats:p>While FPGA accelerator boards and their respective high-level design tools are maturing, there is still a lack of multi-FPGA applications, libraries, and not least, benchmarks and reference implementations towards sustained HPC usage of these devices. As in the early days of GPUs in HPC, for workloads that can reasonably be decoupled into loosely coupled working sets, multi-accelerator support can be achieved by using standard communication interfaces like MPI on the host side. However, for performance and productivity, some applications can profit from a tighter coupling of the accelerators. FPGAs offer unique opportunities here when extending the dataflow characteristics to their communication interfaces.</jats:p>\r\n          <jats:p>In this work, we extend the HPCC FPGA benchmark suite by multi-FPGA support and three missing benchmarks that particularly characterize or stress inter-device communication: b_eff, PTRANS, and LINPACK. With all benchmarks implemented for current boards with Intel and Xilinx FPGAs, we established a baseline for multi-FPGA performance. Additionally, for the communication-centric benchmarks, we explored the potential of direct FPGA-to-FPGA communication with a circuit-switched inter-FPGA network that is currently only available for one of the boards. The evaluation with parallel execution on up to 26 FPGA boards makes use of one of the largest academic FPGA installations.</jats:p>","lang":"eng"}],"publication":"ACM Transactions on Reconfigurable Technology and Systems","department":[{"_id":"27"},{"_id":"518"}],"type":"journal_article","keyword":["General Computer Science"],"date_created":"2023-01-23T08:40:42Z","publication_status":"published","date_updated":"2023-07-28T08:02:05Z","publication_identifier":{"issn":["1936-7406","1936-7414"]},"author":[{"last_name":"Meyer","first_name":"Marius","full_name":"Meyer, Marius","id":"40778"},{"full_name":"Kenter, Tobias","last_name":"Kenter","first_name":"Tobias","id":"3145"},{"first_name":"Christian","orcid":"0000-0001-5728-9982","last_name":"Plessl","full_name":"Plessl, Christian","id":"16153"}],"title":"Multi-FPGA Designs and Scaling of HPC Challenge Benchmarks via MPI and Circuit-Switched Inter-FPGA Networks","year":"2023","doi":"10.1145/3576200","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://dl.acm.org/doi/10.1145/3576200"}]},{"external_id":{"arxiv":["2303.13632"]},"date_created":"2023-03-30T11:15:40Z","type":"conference","department":[{"_id":"27"},{"_id":"518"}],"publication":"2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM)","citation":{"chicago":"Wu, Xin, Tobias Kenter, Robert Schade, Thomas Kühne, and Christian Plessl. “Computing and Compressing Electron Repulsion Integrals on FPGAs.” In <i>2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM)</i>, 162–73, 2023. <a href=\"https://doi.org/10.1109/FCCM57271.2023.00026\">https://doi.org/10.1109/FCCM57271.2023.00026</a>.","ama":"Wu X, Kenter T, Schade R, Kühne T, Plessl C. Computing and Compressing Electron Repulsion Integrals on FPGAs. In: <i>2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM)</i>. ; 2023:162-173. doi:<a href=\"https://doi.org/10.1109/FCCM57271.2023.00026\">10.1109/FCCM57271.2023.00026</a>","short":"X. Wu, T. Kenter, R. Schade, T. Kühne, C. Plessl, in: 2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM), 2023, pp. 162–173.","bibtex":"@inproceedings{Wu_Kenter_Schade_Kühne_Plessl_2023, title={Computing and Compressing Electron Repulsion Integrals on FPGAs}, DOI={<a href=\"https://doi.org/10.1109/FCCM57271.2023.00026\">10.1109/FCCM57271.2023.00026</a>}, booktitle={2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM)}, author={Wu, Xin and Kenter, Tobias and Schade, Robert and Kühne, Thomas and Plessl, Christian}, year={2023}, pages={162–173} }","mla":"Wu, Xin, et al. “Computing and Compressing Electron Repulsion Integrals on FPGAs.” <i>2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM)</i>, 2023, pp. 162–73, doi:<a href=\"https://doi.org/10.1109/FCCM57271.2023.00026\">10.1109/FCCM57271.2023.00026</a>.","apa":"Wu, X., Kenter, T., Schade, R., Kühne, T., &#38; Plessl, C. (2023). Computing and Compressing Electron Repulsion Integrals on FPGAs. <i>2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM)</i>, 162–173. <a href=\"https://doi.org/10.1109/FCCM57271.2023.00026\">https://doi.org/10.1109/FCCM57271.2023.00026</a>","ieee":"X. Wu, T. Kenter, R. Schade, T. Kühne, and C. Plessl, “Computing and Compressing Electron Repulsion Integrals on FPGAs,” in <i>2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM)</i>, 2023, pp. 162–173, doi: <a href=\"https://doi.org/10.1109/FCCM57271.2023.00026\">10.1109/FCCM57271.2023.00026</a>."},"quality_controlled":"1","abstract":[{"text":"The computation of electron repulsion integrals (ERIs) over Gaussian-type orbitals (GTOs) is a challenging problem in quantum-mechanics-based atomistic simulations. In practical simulations, several trillions of ERIs may have to be\r\ncomputed for every time step.\r\nIn this work, we investigate FPGAs as accelerators for the ERI computation. We use template parameters, here within the Intel oneAPI tool flow, to create customized designs for 256 different ERI quartet classes, based on their orbitals. To maximize data reuse, all intermediates are buffered in FPGA on-chip memory with customized layout. The pre-calculation of intermediates also helps to overcome data dependencies caused by multi-dimensional recurrence\r\nrelations. The involved loop structures are partially or even fully unrolled for high throughput of FPGA kernels. Furthermore, a lossy compression algorithm utilizing arbitrary bitwidth integers is integrated in the FPGA kernels. To our\r\nbest knowledge, this is the first work on ERI computation on FPGAs that supports more than just the single most basic quartet class. Also, the integration of ERI computation and compression it a novelty that is not even covered by CPU or GPU libraries so far.\r\nOur evaluation shows that using 16-bit integer for the ERI compression, the fastest FPGA kernels exceed the performance of 10 GERIS ($10 \\times 10^9$ ERIs per second) on one Intel Stratix 10 GX 2800 FPGA, with maximum absolute errors around $10^{-7}$ - $10^{-5}$ Hartree. The measured throughput can be accurately explained by a performance model. The FPGA kernels deployed on 2 FPGAs outperform similar computations using the widely used libint reference on a two-socket server with 40 Xeon Gold 6148 CPU cores of the same process technology by factors up to 6.0x and on a new two-socket server with 128 EPYC 7713 CPU cores by up to 1.9x.","lang":"eng"}],"project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"main_file_link":[{"url":"https://ieeexplore.ieee.org/document/10171537"}],"page":"162-173","_id":"43228","language":[{"iso":"eng"}],"user_id":"75963","doi":"10.1109/FCCM57271.2023.00026","title":"Computing and Compressing Electron Repulsion Integrals on FPGAs","status":"public","year":"2023","author":[{"first_name":"Xin","last_name":"Wu","full_name":"Wu, Xin","id":"77439"},{"id":"3145","full_name":"Kenter, Tobias","first_name":"Tobias","last_name":"Kenter"},{"id":"75963","first_name":"Robert","last_name":"Schade","orcid":"0000-0002-6268-539","full_name":"Schade, Robert"},{"full_name":"Kühne, Thomas","first_name":"Thomas","last_name":"Kühne","id":"49079"},{"id":"16153","last_name":"Plessl","first_name":"Christian","orcid":"0000-0001-5728-9982","full_name":"Plessl, Christian"}],"date_updated":"2023-08-02T15:05:42Z"},{"publication":"The International Journal of High Performance Computing Applications","abstract":[{"text":"<jats:p> The non-orthogonal local submatrix method applied to electronic structure–based molecular dynamics simulations is shown to exceed 1.1 EFLOP/s in FP16/FP32-mixed floating-point arithmetic when using 4400 NVIDIA A100 GPUs of the Perlmutter system. This is enabled by a modification of the original method that pushes the sustained fraction of the peak performance to about 80%. Example calculations are performed for SARS-CoV-2 spike proteins with up to 83 million atoms. </jats:p>","lang":"eng"}],"date_created":"2023-05-30T09:19:09Z","department":[{"_id":"27"},{"_id":"518"}],"keyword":["Hardware and Architecture","Theoretical Computer Science","Software"],"type":"journal_article","publication_identifier":{"issn":["1094-3420","1741-2846"]},"author":[{"full_name":"Schade, Robert","orcid":"0000-0002-6268-539","last_name":"Schade","first_name":"Robert","id":"75963"},{"id":"3145","full_name":"Kenter, Tobias","last_name":"Kenter","first_name":"Tobias"},{"full_name":"Elgabarty, Hossam","orcid":"0000-0002-4945-1481","last_name":"Elgabarty","first_name":"Hossam","id":"60250"},{"last_name":"Lass","first_name":"Michael","orcid":"0000-0002-5708-7632","full_name":"Lass, Michael","id":"24135"},{"full_name":"Kühne, Thomas","first_name":"Thomas","last_name":"Kühne","id":"49079"},{"id":"16153","full_name":"Plessl, Christian","first_name":"Christian","orcid":"0000-0001-5728-9982","last_name":"Plessl"}],"title":"Breaking the exascale barrier for the electronic structure problem in ab-initio molecular dynamics","year":"2023","article_type":"original","publication_status":"published","date_updated":"2023-08-02T15:04:53Z","language":[{"iso":"eng"}],"article_number":"109434202311776","main_file_link":[{"open_access":"1","url":"https://journals.sagepub.com/doi/10.1177/10943420231177631"}],"doi":"10.1177/10943420231177631","citation":{"short":"R. Schade, T. Kenter, H. Elgabarty, M. Lass, T. Kühne, C. Plessl, The International Journal of High Performance Computing Applications (2023).","ama":"Schade R, Kenter T, Elgabarty H, Lass M, Kühne T, Plessl C. Breaking the exascale barrier for the electronic structure problem in ab-initio molecular dynamics. <i>The International Journal of High Performance Computing Applications</i>. Published online 2023. doi:<a href=\"https://doi.org/10.1177/10943420231177631\">10.1177/10943420231177631</a>","chicago":"Schade, Robert, Tobias Kenter, Hossam Elgabarty, Michael Lass, Thomas Kühne, and Christian Plessl. “Breaking the Exascale Barrier for the Electronic Structure Problem in Ab-Initio Molecular Dynamics.” <i>The International Journal of High Performance Computing Applications</i>, 2023. <a href=\"https://doi.org/10.1177/10943420231177631\">https://doi.org/10.1177/10943420231177631</a>.","bibtex":"@article{Schade_Kenter_Elgabarty_Lass_Kühne_Plessl_2023, title={Breaking the exascale barrier for the electronic structure problem in ab-initio molecular dynamics}, DOI={<a href=\"https://doi.org/10.1177/10943420231177631\">10.1177/10943420231177631</a>}, number={109434202311776}, journal={The International Journal of High Performance Computing Applications}, publisher={SAGE Publications}, author={Schade, Robert and Kenter, Tobias and Elgabarty, Hossam and Lass, Michael and Kühne, Thomas and Plessl, Christian}, year={2023} }","apa":"Schade, R., Kenter, T., Elgabarty, H., Lass, M., Kühne, T., &#38; Plessl, C. (2023). Breaking the exascale barrier for the electronic structure problem in ab-initio molecular dynamics. <i>The International Journal of High Performance Computing Applications</i>, Article 109434202311776. <a href=\"https://doi.org/10.1177/10943420231177631\">https://doi.org/10.1177/10943420231177631</a>","mla":"Schade, Robert, et al. “Breaking the Exascale Barrier for the Electronic Structure Problem in Ab-Initio Molecular Dynamics.” <i>The International Journal of High Performance Computing Applications</i>, 109434202311776, SAGE Publications, 2023, doi:<a href=\"https://doi.org/10.1177/10943420231177631\">10.1177/10943420231177631</a>.","ieee":"R. Schade, T. Kenter, H. Elgabarty, M. Lass, T. Kühne, and C. Plessl, “Breaking the exascale barrier for the electronic structure problem in ab-initio molecular dynamics,” <i>The International Journal of High Performance Computing Applications</i>, Art. no. 109434202311776, 2023, doi: <a href=\"https://doi.org/10.1177/10943420231177631\">10.1177/10943420231177631</a>."},"project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"quality_controlled":"1","oa":"1","status":"public","publisher":"SAGE Publications","_id":"45361","user_id":"75963"},{"date_updated":"2023-09-12T08:04:52Z","year":"2023","status":"public","title":"Numerische Untersuchung von Oberflächenstrukturierung zur Erhöhung der Effizienz von Kissenplatten-Wärmeübertragern","conference":{"end_date":"08.06.2023","location":"Frankfurt am Main","name":"Jahrestreffen der DECHEMA-Fachgruppen Computational Fluid Dynamics und Wärme- und Stoffübertragung","start_date":"06.03.2023"},"author":[{"first_name":"Reza","last_name":"Afsahnoudeh","full_name":"Afsahnoudeh, Reza","id":"90390"},{"first_name":"Maik","last_name":"Holzmüller","full_name":"Holzmüller, Maik","id":"82645"},{"id":"65204","first_name":"Fabian","last_name":"Bader","full_name":"Bader, Fabian"},{"full_name":"Homberg, Werner","last_name":"Homberg","first_name":"Werner","id":"233"},{"id":"665","full_name":"Kenig, Eugeny Y.","first_name":"Eugeny Y.","last_name":"Kenig"}],"user_id":"90390","_id":"28941","language":[{"iso":"eng"}],"project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"mla":"Afsahnoudeh, Reza, et al. <i>Numerische Untersuchung von Oberflächenstrukturierung Zur Erhöhung Der Effizienz von Kissenplatten-Wärmeübertragern</i>. 2023.","bibtex":"@inproceedings{Afsahnoudeh_Holzmüller_Bader_Homberg_Kenig_2023, title={Numerische Untersuchung von Oberflächenstrukturierung zur Erhöhung der Effizienz von Kissenplatten-Wärmeübertragern}, author={Afsahnoudeh, Reza and Holzmüller, Maik and Bader, Fabian and Homberg, Werner and Kenig, Eugeny Y.}, year={2023} }","ama":"Afsahnoudeh R, Holzmüller M, Bader F, Homberg W, Kenig EY. Numerische Untersuchung von Oberflächenstrukturierung zur Erhöhung der Effizienz von Kissenplatten-Wärmeübertragern. In: ; 2023.","ieee":"R. Afsahnoudeh, M. Holzmüller, F. Bader, W. Homberg, and E. Y. Kenig, “Numerische Untersuchung von Oberflächenstrukturierung zur Erhöhung der Effizienz von Kissenplatten-Wärmeübertragern,” presented at the Jahrestreffen der DECHEMA-Fachgruppen Computational Fluid Dynamics und Wärme- und Stoffübertragung, Frankfurt am Main, 2023.","apa":"Afsahnoudeh, R., Holzmüller, M., Bader, F., Homberg, W., &#38; Kenig, E. Y. (2023). <i>Numerische Untersuchung von Oberflächenstrukturierung zur Erhöhung der Effizienz von Kissenplatten-Wärmeübertragern</i>. Jahrestreffen der DECHEMA-Fachgruppen Computational Fluid Dynamics und Wärme- und Stoffübertragung, Frankfurt am Main.","chicago":"Afsahnoudeh, Reza, Maik Holzmüller, Fabian Bader, Werner Homberg, and Eugeny Y. Kenig. “Numerische Untersuchung von Oberflächenstrukturierung Zur Erhöhung Der Effizienz von Kissenplatten-Wärmeübertragern,” 2023.","short":"R. Afsahnoudeh, M. Holzmüller, F. Bader, W. Homberg, E.Y. Kenig, in: 2023."},"type":"conference_abstract","department":[{"_id":"145"}],"date_created":"2021-12-15T11:08:25Z"},{"volume":5,"user_id":"55907","_id":"55900","publisher":"American Physical Society (APS)","status":"public","oa":"1","project":[{"_id":"53","name":"TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"name":"TRR 142 - C: TRR 142 - Project Area C","_id":"56"},{"_id":"174","name":"TRR 142 - C10: TRR 142 -  Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen Systemen: Eine theoretische Analyse (C10*)"},{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"bibtex":"@article{Scharwald_Meier_Sharapova_2023, title={Phase sensitivity of spatially broadband high-gain SU(1,1) interferometers}, volume={5}, DOI={<a href=\"https://doi.org/10.1103/physrevresearch.5.043158\">10.1103/physrevresearch.5.043158</a>}, number={4043158}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Scharwald, Dennis and Meier, Torsten and Sharapova, Polina}, year={2023} }","chicago":"Scharwald, Dennis, Torsten Meier, and Polina Sharapova. “Phase Sensitivity of Spatially Broadband High-Gain SU(1,1) Interferometers.” <i>Physical Review Research</i> 5, no. 4 (2023). <a href=\"https://doi.org/10.1103/physrevresearch.5.043158\">https://doi.org/10.1103/physrevresearch.5.043158</a>.","short":"D. Scharwald, T. Meier, P. Sharapova, Physical Review Research 5 (2023).","ama":"Scharwald D, Meier T, Sharapova P. Phase sensitivity of spatially broadband high-gain SU(1,1) interferometers. <i>Physical Review Research</i>. 2023;5(4). doi:<a href=\"https://doi.org/10.1103/physrevresearch.5.043158\">10.1103/physrevresearch.5.043158</a>","ieee":"D. Scharwald, T. Meier, and P. Sharapova, “Phase sensitivity of spatially broadband high-gain SU(1,1) interferometers,” <i>Physical Review Research</i>, vol. 5, no. 4, Art. no. 043158, 2023, doi: <a href=\"https://doi.org/10.1103/physrevresearch.5.043158\">10.1103/physrevresearch.5.043158</a>.","apa":"Scharwald, D., Meier, T., &#38; Sharapova, P. (2023). Phase sensitivity of spatially broadband high-gain SU(1,1) interferometers. <i>Physical Review Research</i>, <i>5</i>(4), Article 043158. <a href=\"https://doi.org/10.1103/physrevresearch.5.043158\">https://doi.org/10.1103/physrevresearch.5.043158</a>","mla":"Scharwald, Dennis, et al. “Phase Sensitivity of Spatially Broadband High-Gain SU(1,1) Interferometers.” <i>Physical Review Research</i>, vol. 5, no. 4, 043158, American Physical Society (APS), 2023, doi:<a href=\"https://doi.org/10.1103/physrevresearch.5.043158\">10.1103/physrevresearch.5.043158</a>."},"doi":"10.1103/physrevresearch.5.043158","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://journals.aps.org/prresearch/pdf/10.1103/PhysRevResearch.5.043158"}],"article_number":"043158","intvolume":"         5","date_updated":"2026-02-01T13:21:22Z","publication_status":"published","publication_identifier":{"issn":["2643-1564"]},"author":[{"full_name":"Scharwald, Dennis","orcid":"0009-0007-5654-5412","last_name":"Scharwald","first_name":"Dennis","id":"55907"},{"id":"344","last_name":"Meier","first_name":"Torsten","orcid":"0000-0001-8864-2072","full_name":"Meier, Torsten"},{"full_name":"Sharapova, Polina","last_name":"Sharapova","first_name":"Polina"}],"title":"Phase sensitivity of spatially broadband high-gain SU(1,1) interferometers","year":"2023","department":[{"_id":"15"},{"_id":"569"},{"_id":"170"},{"_id":"293"},{"_id":"35"},{"_id":"230"},{"_id":"429"},{"_id":"623"},{"_id":"27"}],"type":"journal_article","date_created":"2024-08-30T04:48:05Z","publication":"Physical Review Research","issue":"4"},{"publisher":"Wiley","_id":"61252","user_id":"16199","volume":7,"status":"public","citation":{"apa":"Bauch, D., Siebert, D., Jöns, K. D., Förstner, J., &#38; Schumacher, S. (2023). On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs. <i>Advanced Quantum Technologies</i>, <i>7</i>(1), Article 2300142. <a href=\"https://doi.org/10.1002/qute.202300142\">https://doi.org/10.1002/qute.202300142</a>","ieee":"D. Bauch, D. Siebert, K. D. Jöns, J. Förstner, and S. Schumacher, “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs,” <i>Advanced Quantum Technologies</i>, vol. 7, no. 1, Art. no. 2300142, 2023, doi: <a href=\"https://doi.org/10.1002/qute.202300142\">10.1002/qute.202300142</a>.","short":"D. Bauch, D. Siebert, K.D. Jöns, J. Förstner, S. Schumacher, Advanced Quantum Technologies 7 (2023).","chicago":"Bauch, David, Dustin Siebert, Klaus D. Jöns, Jens Förstner, and Stefan Schumacher. “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.” <i>Advanced Quantum Technologies</i> 7, no. 1 (2023). <a href=\"https://doi.org/10.1002/qute.202300142\">https://doi.org/10.1002/qute.202300142</a>.","mla":"Bauch, David, et al. “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.” <i>Advanced Quantum Technologies</i>, vol. 7, no. 1, 2300142, Wiley, 2023, doi:<a href=\"https://doi.org/10.1002/qute.202300142\">10.1002/qute.202300142</a>.","ama":"Bauch D, Siebert D, Jöns KD, Förstner J, Schumacher S. On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs. <i>Advanced Quantum Technologies</i>. 2023;7(1). doi:<a href=\"https://doi.org/10.1002/qute.202300142\">10.1002/qute.202300142</a>","bibtex":"@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs}, volume={7}, DOI={<a href=\"https://doi.org/10.1002/qute.202300142\">10.1002/qute.202300142</a>}, number={12300142}, journal={Advanced Quantum Technologies}, publisher={Wiley}, author={Bauch, David and Siebert, Dustin and Jöns, Klaus D. and Förstner, Jens and Schumacher, Stefan}, year={2023} }"},"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"_id":"53","name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"_id":"55","name":"TRR 142 - Project Area B"},{"name":"TRR 142 - Project Area C","_id":"56"},{"name":"TRR 142; TP B06: Ultraschnelle kohärente opto-elektronische Kontrolle eines photonischen Quantensystems","_id":"167"},{"_id":"173","name":"TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch bei Telekom Wellenlängen"},{"_id":"266","name":"PhoQC: Photonisches Quantencomputing"}],"article_number":"2300142","language":[{"iso":"eng"}],"doi":"10.1002/qute.202300142","year":"2023","title":"On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs","publication_identifier":{"issn":["2511-9044","2511-9044"]},"author":[{"full_name":"Bauch, David","last_name":"Bauch","first_name":"David"},{"first_name":"Dustin","last_name":"Siebert","full_name":"Siebert, Dustin"},{"id":"85353","first_name":"Klaus D.","last_name":"Jöns","full_name":"Jöns, Klaus D."},{"id":"158","orcid":"0000-0001-7059-9862","last_name":"Förstner","first_name":"Jens","full_name":"Förstner, Jens"},{"full_name":"Schumacher, Stefan","last_name":"Schumacher","orcid":"0000-0003-4042-4951","first_name":"Stefan","id":"27271"}],"publication_status":"published","date_updated":"2025-09-12T11:16:12Z","intvolume":"         7","date_created":"2025-09-12T11:11:56Z","type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"642"},{"_id":"61"},{"_id":"230"},{"_id":"35"},{"_id":"34"},{"_id":"429"},{"_id":"27"},{"_id":"623"}],"publication":"Advanced Quantum Technologies","issue":"1","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>The biexciton‐exciton emission cascade commonly used in quantum‐dot systems to generate polarization entanglement yields photons with intrinsically limited indistinguishability. In the present work, it focuses on the generation of pairs of photons with high degrees of polarization entanglement and simultaneously high indistinguishability. It achieves this goal by selectively reducing the biexciton lifetime with an optical resonator. It demonstrates that a suitably tailored circular Bragg reflector fulfills the requirements of sufficient selective Purcell enhancement of biexciton emission paired with spectrally broad photon extraction and twofold degenerate optical modes. The in‐depth theoretical study combines (i) the optimization of realistic photonic structures solving Maxwell's equations from which model parameters are extracted as input for (ii) microscopic simulations of quantum‐dot cavity excitation dynamics with full access to photon properties. It reports non‐trivial dependencies on system parameters and use the predictive power of the combined theoretical approach to determine the optimal range of Purcell enhancement that maximizes indistinguishability and entanglement to near unity values, here specifically for the telecom C‐band at 1550 nm.</jats:p>"}]},{"project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"_id":"266","name":"PhoQC: Photonisches Quantencomputing"}],"citation":{"short":"C. Lüders, F. Barkhausen, M. Pukrop, E. Rozas, J. Sperling, S. Schumacher, M. Aßmann, Optical Materials Express 13 (2023).","chicago":"Lüders, Carolin, Franziska Barkhausen, Matthias Pukrop, Elena Rozas, Jan Sperling, Stefan Schumacher, and Marc Aßmann. “Continuous-Variable Quantum Optics and Resource Theory for Ultrafast Semiconductor Spectroscopy [Invited].” <i>Optical Materials Express</i> 13, no. 11 (2023). <a href=\"https://doi.org/10.1364/ome.497006\">https://doi.org/10.1364/ome.497006</a>.","ieee":"C. Lüders <i>et al.</i>, “Continuous-variable quantum optics and resource theory for ultrafast semiconductor spectroscopy [Invited],” <i>Optical Materials Express</i>, vol. 13, no. 11, Art. no. 2997, 2023, doi: <a href=\"https://doi.org/10.1364/ome.497006\">10.1364/ome.497006</a>.","apa":"Lüders, C., Barkhausen, F., Pukrop, M., Rozas, E., Sperling, J., Schumacher, S., &#38; Aßmann, M. (2023). Continuous-variable quantum optics and resource theory for ultrafast semiconductor spectroscopy [Invited]. <i>Optical Materials Express</i>, <i>13</i>(11), Article 2997. <a href=\"https://doi.org/10.1364/ome.497006\">https://doi.org/10.1364/ome.497006</a>","bibtex":"@article{Lüders_Barkhausen_Pukrop_Rozas_Sperling_Schumacher_Aßmann_2023, title={Continuous-variable quantum optics and resource theory for ultrafast semiconductor spectroscopy [Invited]}, volume={13}, DOI={<a href=\"https://doi.org/10.1364/ome.497006\">10.1364/ome.497006</a>}, number={112997}, journal={Optical Materials Express}, publisher={Optica Publishing Group}, author={Lüders, Carolin and Barkhausen, Franziska and Pukrop, Matthias and Rozas, Elena and Sperling, Jan and Schumacher, Stefan and Aßmann, Marc}, year={2023} }","ama":"Lüders C, Barkhausen F, Pukrop M, et al. Continuous-variable quantum optics and resource theory for ultrafast semiconductor spectroscopy [Invited]. <i>Optical Materials Express</i>. 2023;13(11). doi:<a href=\"https://doi.org/10.1364/ome.497006\">10.1364/ome.497006</a>","mla":"Lüders, Carolin, et al. “Continuous-Variable Quantum Optics and Resource Theory for Ultrafast Semiconductor Spectroscopy [Invited].” <i>Optical Materials Express</i>, vol. 13, no. 11, 2997, Optica Publishing Group, 2023, doi:<a href=\"https://doi.org/10.1364/ome.497006\">10.1364/ome.497006</a>."},"volume":13,"user_id":"16199","publisher":"Optica Publishing Group","_id":"61266","status":"public","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"706"},{"_id":"35"},{"_id":"230"},{"_id":"27"},{"_id":"623"}],"type":"journal_article","date_created":"2025-09-12T11:40:26Z","abstract":[{"text":"<jats:p>This review examines the use of continuous-variable spectroscopy techniques for investigating quantum coherence and light-matter interactions in semiconductor systems with ultrafast dynamics. Special emphasis is placed on multichannel homodyne detection as a powerful tool to measure the quantum coherence and the full density matrix of a polariton system. Observations, such as coherence times that exceed the nanosecond scale obtained by monitoring the temporal decay of quantum coherence in a polariton condensate, are discussed. Proof-of-concept experiments and numerical simulations that demonstrate the enhanced resourcefulness of the produced system states for modern quantum protocols are assessed. The combination of tailored resource quantifiers and ultrafast spectroscopy techniques that have recently been demonstrated paves the way for future applications of quantum information technologies.</jats:p>","lang":"eng"}],"issue":"11","publication":"Optical Materials Express","doi":"10.1364/ome.497006","language":[{"iso":"eng"}],"article_number":"2997","intvolume":"        13","date_updated":"2025-09-12T11:41:42Z","publication_status":"published","author":[{"first_name":"Carolin","last_name":"Lüders","full_name":"Lüders, Carolin"},{"full_name":"Barkhausen, Franziska","first_name":"Franziska","last_name":"Barkhausen","id":"63631"},{"last_name":"Pukrop","first_name":"Matthias","full_name":"Pukrop, Matthias"},{"last_name":"Rozas","first_name":"Elena","full_name":"Rozas, Elena"},{"id":"75127","last_name":"Sperling","first_name":"Jan","orcid":"0000-0002-5844-3205","full_name":"Sperling, Jan"},{"id":"27271","full_name":"Schumacher, Stefan","last_name":"Schumacher","first_name":"Stefan","orcid":"0000-0003-4042-4951"},{"last_name":"Aßmann","first_name":"Marc","full_name":"Aßmann, Marc"}],"publication_identifier":{"issn":["2159-3930"]},"year":"2023","title":"Continuous-variable quantum optics and resource theory for ultrafast semiconductor spectroscopy [Invited]"},{"date_created":"2025-09-12T11:36:52Z","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"type":"journal_article","publication":"ACS Nano","issue":"5","language":[{"iso":"eng"}],"doi":"10.1021/acsnano.2c01665","publication_identifier":{"issn":["1936-0851","1936-086X"]},"author":[{"last_name":"Yu","first_name":"Yueyang","full_name":"Yu, Yueyang"},{"full_name":"Dong, Chuan-Ding","first_name":"Chuan-Ding","last_name":"Dong"},{"full_name":"Binder, Rolf","last_name":"Binder","first_name":"Rolf"},{"id":"27271","orcid":"0000-0003-4042-4951","first_name":"Stefan","last_name":"Schumacher","full_name":"Schumacher, Stefan"},{"first_name":"Cun-Zheng","last_name":"Ning","full_name":"Ning, Cun-Zheng"}],"year":"2023","title":"Strain-Induced Indirect-to-Direct Bandgap Transition, Photoluminescence Enhancement, and Linewidth Reduction in Bilayer MoTe<sub>2</sub>","intvolume":"        17","publication_status":"published","date_updated":"2025-09-12T11:37:52Z","citation":{"ieee":"Y. Yu, C.-D. Dong, R. Binder, S. Schumacher, and C.-Z. Ning, “Strain-Induced Indirect-to-Direct Bandgap Transition, Photoluminescence Enhancement, and Linewidth Reduction in Bilayer MoTe<sub>2</sub>,” <i>ACS Nano</i>, vol. 17, no. 5, pp. 4230–4238, 2023, doi: <a href=\"https://doi.org/10.1021/acsnano.2c01665\">10.1021/acsnano.2c01665</a>.","apa":"Yu, Y., Dong, C.-D., Binder, R., Schumacher, S., &#38; Ning, C.-Z. (2023). Strain-Induced Indirect-to-Direct Bandgap Transition, Photoluminescence Enhancement, and Linewidth Reduction in Bilayer MoTe<sub>2</sub>. <i>ACS Nano</i>, <i>17</i>(5), 4230–4238. <a href=\"https://doi.org/10.1021/acsnano.2c01665\">https://doi.org/10.1021/acsnano.2c01665</a>","mla":"Yu, Yueyang, et al. “Strain-Induced Indirect-to-Direct Bandgap Transition, Photoluminescence Enhancement, and Linewidth Reduction in Bilayer MoTe<sub>2</sub>.” <i>ACS Nano</i>, vol. 17, no. 5, American Chemical Society (ACS), 2023, pp. 4230–38, doi:<a href=\"https://doi.org/10.1021/acsnano.2c01665\">10.1021/acsnano.2c01665</a>.","bibtex":"@article{Yu_Dong_Binder_Schumacher_Ning_2023, title={Strain-Induced Indirect-to-Direct Bandgap Transition, Photoluminescence Enhancement, and Linewidth Reduction in Bilayer MoTe<sub>2</sub>}, volume={17}, DOI={<a href=\"https://doi.org/10.1021/acsnano.2c01665\">10.1021/acsnano.2c01665</a>}, number={5}, journal={ACS Nano}, publisher={American Chemical Society (ACS)}, author={Yu, Yueyang and Dong, Chuan-Ding and Binder, Rolf and Schumacher, Stefan and Ning, Cun-Zheng}, year={2023}, pages={4230–4238} }","chicago":"Yu, Yueyang, Chuan-Ding Dong, Rolf Binder, Stefan Schumacher, and Cun-Zheng Ning. “Strain-Induced Indirect-to-Direct Bandgap Transition, Photoluminescence Enhancement, and Linewidth Reduction in Bilayer MoTe<sub>2</sub>.” <i>ACS Nano</i> 17, no. 5 (2023): 4230–38. <a href=\"https://doi.org/10.1021/acsnano.2c01665\">https://doi.org/10.1021/acsnano.2c01665</a>.","short":"Y. Yu, C.-D. Dong, R. Binder, S. Schumacher, C.-Z. Ning, ACS Nano 17 (2023) 4230–4238.","ama":"Yu Y, Dong C-D, Binder R, Schumacher S, Ning C-Z. Strain-Induced Indirect-to-Direct Bandgap Transition, Photoluminescence Enhancement, and Linewidth Reduction in Bilayer MoTe<sub>2</sub>. <i>ACS Nano</i>. 2023;17(5):4230-4238. doi:<a href=\"https://doi.org/10.1021/acsnano.2c01665\">10.1021/acsnano.2c01665</a>"},"project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"publisher":"American Chemical Society (ACS)","_id":"61264","page":"4230-4238","volume":17,"user_id":"16199","status":"public"},{"status":"public","page":"12992-12998","_id":"61267","publisher":"Royal Society of Chemistry (RSC)","user_id":"16199","volume":11,"citation":{"ama":"Bauch F, Dong C-D, Schumacher S. Dynamics-induced charge transfer in semiconducting conjugated polymers. <i>Journal of Materials Chemistry C</i>. 2023;11(38):12992-12998. doi:<a href=\"https://doi.org/10.1039/d3tc02263c\">10.1039/d3tc02263c</a>","bibtex":"@article{Bauch_Dong_Schumacher_2023, title={Dynamics-induced charge transfer in semiconducting conjugated polymers}, volume={11}, DOI={<a href=\"https://doi.org/10.1039/d3tc02263c\">10.1039/d3tc02263c</a>}, number={38}, journal={Journal of Materials Chemistry C}, publisher={Royal Society of Chemistry (RSC)}, author={Bauch, Fabian and Dong, Chuan-Ding and Schumacher, Stefan}, year={2023}, pages={12992–12998} }","mla":"Bauch, Fabian, et al. “Dynamics-Induced Charge Transfer in Semiconducting Conjugated Polymers.” <i>Journal of Materials Chemistry C</i>, vol. 11, no. 38, Royal Society of Chemistry (RSC), 2023, pp. 12992–98, doi:<a href=\"https://doi.org/10.1039/d3tc02263c\">10.1039/d3tc02263c</a>.","chicago":"Bauch, Fabian, Chuan-Ding Dong, and Stefan Schumacher. “Dynamics-Induced Charge Transfer in Semiconducting Conjugated Polymers.” <i>Journal of Materials Chemistry C</i> 11, no. 38 (2023): 12992–98. <a href=\"https://doi.org/10.1039/d3tc02263c\">https://doi.org/10.1039/d3tc02263c</a>.","short":"F. Bauch, C.-D. Dong, S. Schumacher, Journal of Materials Chemistry C 11 (2023) 12992–12998.","apa":"Bauch, F., Dong, C.-D., &#38; Schumacher, S. (2023). Dynamics-induced charge transfer in semiconducting conjugated polymers. <i>Journal of Materials Chemistry C</i>, <i>11</i>(38), 12992–12998. <a href=\"https://doi.org/10.1039/d3tc02263c\">https://doi.org/10.1039/d3tc02263c</a>","ieee":"F. Bauch, C.-D. Dong, and S. Schumacher, “Dynamics-induced charge transfer in semiconducting conjugated polymers,” <i>Journal of Materials Chemistry C</i>, vol. 11, no. 38, pp. 12992–12998, 2023, doi: <a href=\"https://doi.org/10.1039/d3tc02263c\">10.1039/d3tc02263c</a>."},"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"year":"2023","title":"Dynamics-induced charge transfer in semiconducting conjugated polymers","author":[{"full_name":"Bauch, Fabian","last_name":"Bauch","first_name":"Fabian"},{"full_name":"Dong, Chuan-Ding","first_name":"Chuan-Ding","last_name":"Dong"},{"id":"27271","full_name":"Schumacher, Stefan","first_name":"Stefan","orcid":"0000-0003-4042-4951","last_name":"Schumacher"}],"publication_identifier":{"issn":["2050-7526","2050-7534"]},"publication_status":"published","date_updated":"2025-09-12T11:43:49Z","intvolume":"        11","language":[{"iso":"eng"}],"doi":"10.1039/d3tc02263c","publication":"Journal of Materials Chemistry C","issue":"38","abstract":[{"text":"<jats:p>Dynamics-induced interchain charge transfer in a polymer aggregate in stack configuration can be understood by single-oligomer polaron energy.</jats:p>","lang":"eng"}],"date_created":"2025-09-12T11:43:03Z","type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"230"},{"_id":"27"}]}]