--- _id: '21821' abstract: - lang: eng text: We present a combined experimental and numerical study of the far-field emission properties of optical travelling wave antennas made from low-loss dielectric materials. The antennas considered here are composed of two simple building blocks, a director and a reflector, deposited on a glass substrate. Colloidal quantum dots placed in the feed gap between the two elements serve as internal light source. The emission profile of the antenna is mainly formed by the director while the reflector suppresses backward emission. Systematic studies of the director dimensions as well as variation of antenna material show that the effective refractive index of the director primarily governs the far-field emission pattern. Below cut off, i.e., if the director’s effective refractive index is smaller than the refractive index of the substrate, the main lobe results from leaky wave emission along the director. In contrast, if the director supports a guided mode, the emission predominately originates from the end facet of the director. article_number: '14694' author: - first_name: T. full_name: Leuteritz, T. last_name: Leuteritz - first_name: Henna full_name: Farheen, Henna id: '53444' last_name: Farheen orcid: 0000-0001-7730-3489 - first_name: S. full_name: Qiao, S. last_name: Qiao - first_name: F. full_name: Spreyer, F. last_name: Spreyer - first_name: Christian full_name: Schlickriede, Christian id: '59792' last_name: Schlickriede - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Viktor full_name: Myroshnychenko, Viktor id: '46371' last_name: Myroshnychenko - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: S. full_name: Linden, S. last_name: Linden citation: ama: Leuteritz T, Farheen H, Qiao S, et al. Dielectric travelling wave antennas for directional light emission. Optics Express. 2021;29(10). doi:10.1364/oe.422984 apa: Leuteritz, T., Farheen, H., Qiao, S., Spreyer, F., Schlickriede, C., Zentgraf, T., Myroshnychenko, V., Förstner, J., & Linden, S. (2021). Dielectric travelling wave antennas for directional light emission. Optics Express, 29(10), Article 14694. https://doi.org/10.1364/oe.422984 bibtex: '@article{Leuteritz_Farheen_Qiao_Spreyer_Schlickriede_Zentgraf_Myroshnychenko_Förstner_Linden_2021, title={Dielectric travelling wave antennas for directional light emission}, volume={29}, DOI={10.1364/oe.422984}, number={1014694}, journal={Optics Express}, author={Leuteritz, T. and Farheen, Henna and Qiao, S. and Spreyer, F. and Schlickriede, Christian and Zentgraf, Thomas and Myroshnychenko, Viktor and Förstner, Jens and Linden, S.}, year={2021} }' chicago: Leuteritz, T., Henna Farheen, S. Qiao, F. Spreyer, Christian Schlickriede, Thomas Zentgraf, Viktor Myroshnychenko, Jens Förstner, and S. Linden. “Dielectric Travelling Wave Antennas for Directional Light Emission.” Optics Express 29, no. 10 (2021). https://doi.org/10.1364/oe.422984. ieee: 'T. Leuteritz et al., “Dielectric travelling wave antennas for directional light emission,” Optics Express, vol. 29, no. 10, Art. no. 14694, 2021, doi: 10.1364/oe.422984.' mla: Leuteritz, T., et al. “Dielectric Travelling Wave Antennas for Directional Light Emission.” Optics Express, vol. 29, no. 10, 14694, 2021, doi:10.1364/oe.422984. short: T. Leuteritz, H. Farheen, S. Qiao, F. Spreyer, C. Schlickriede, T. Zentgraf, V. Myroshnychenko, J. Förstner, S. Linden, Optics Express 29 (2021). date_created: 2021-04-29T06:56:40Z date_updated: 2024-07-22T07:45:22Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' - _id: '15' - _id: '289' doi: 10.1364/oe.422984 file: - access_level: closed content_type: application/pdf creator: fossie date_created: 2021-04-29T06:59:39Z date_updated: 2021-04-29T06:59:39Z file_id: '21822' file_name: 2021-04 Leuteritz - Optics Express - Dielectric travelling wave antennas.pdf file_size: 7464073 relation: main_file success: 1 file_date_updated: 2021-04-29T06:59:39Z has_accepted_license: '1' intvolume: ' 29' issue: '10' keyword: - tet_topic_opticalantenna language: - iso: eng project: - _id: '53' grant_number: '231447078' name: TRR 142 - _id: '56' name: TRR 142 - Project Area C - _id: '75' grant_number: '231447078' name: TRR 142 - Subproject C5 publication: Optics Express publication_identifier: issn: - 1094-4087 publication_status: published status: public title: Dielectric travelling wave antennas for directional light emission type: journal_article user_id: '158' volume: 29 year: '2021' ... --- _id: '27099' abstract: - lang: eng text: In our work, we have engineered low capacitance single quantum dot photodiodes as sensor devices for the optoelectronic sampling of ultrafast electric signals. By the Stark effect, a time-dependent electric signal is converted into a time-dependent shift of the transition energy. This shift is measured accurately by resonant ps laser spectroscopy with photocurrent detection. In our experiments, we sample the laser synchronous output pulse of an ultrafast CMOS circuit with high resolution. With our quantum dot sensor device, we were able to sample transients below 20 ps with a voltage resolution in the mV-range. author: - first_name: Alex full_name: Widhalm, Alex last_name: Widhalm - first_name: Sebastian full_name: Krehs, Sebastian last_name: Krehs - first_name: Dustin full_name: Siebert, Dustin last_name: Siebert - first_name: Nand Lal full_name: Sharma, Nand Lal last_name: Sharma - first_name: Timo full_name: Langer, Timo last_name: Langer - first_name: Björn full_name: Jonas, Björn last_name: Jonas - first_name: Dirk full_name: Reuter, Dirk id: '37763' last_name: Reuter - first_name: Andreas full_name: Thiede, Andreas id: '538' last_name: Thiede - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Artur full_name: Zrenner, Artur id: '606' last_name: Zrenner orcid: 0000-0002-5190-0944 citation: ama: Widhalm A, Krehs S, Siebert D, et al. Optoelectronic sampling of ultrafast electric transients with single quantum dots. Applied Physics Letters. 2021;119:181109. doi:10.1063/5.0061358 apa: Widhalm, A., Krehs, S., Siebert, D., Sharma, N. L., Langer, T., Jonas, B., Reuter, D., Thiede, A., Förstner, J., & Zrenner, A. (2021). Optoelectronic sampling of ultrafast electric transients with single quantum dots. Applied Physics Letters, 119, 181109. https://doi.org/10.1063/5.0061358 bibtex: '@article{Widhalm_Krehs_Siebert_Sharma_Langer_Jonas_Reuter_Thiede_Förstner_Zrenner_2021, title={Optoelectronic sampling of ultrafast electric transients with single quantum dots}, volume={119}, DOI={10.1063/5.0061358}, journal={Applied Physics Letters}, author={Widhalm, Alex and Krehs, Sebastian and Siebert, Dustin and Sharma, Nand Lal and Langer, Timo and Jonas, Björn and Reuter, Dirk and Thiede, Andreas and Förstner, Jens and Zrenner, Artur}, year={2021}, pages={181109} }' chicago: 'Widhalm, Alex, Sebastian Krehs, Dustin Siebert, Nand Lal Sharma, Timo Langer, Björn Jonas, Dirk Reuter, Andreas Thiede, Jens Förstner, and Artur Zrenner. “Optoelectronic Sampling of Ultrafast Electric Transients with Single Quantum Dots.” Applied Physics Letters 119 (2021): 181109. https://doi.org/10.1063/5.0061358.' ieee: 'A. Widhalm et al., “Optoelectronic sampling of ultrafast electric transients with single quantum dots,” Applied Physics Letters, vol. 119, p. 181109, 2021, doi: 10.1063/5.0061358.' mla: Widhalm, Alex, et al. “Optoelectronic Sampling of Ultrafast Electric Transients with Single Quantum Dots.” Applied Physics Letters, vol. 119, 2021, p. 181109, doi:10.1063/5.0061358. short: A. Widhalm, S. Krehs, D. Siebert, N.L. Sharma, T. Langer, B. Jonas, D. Reuter, A. Thiede, J. Förstner, A. Zrenner, Applied Physics Letters 119 (2021) 181109. date_created: 2021-11-03T10:32:03Z date_updated: 2023-01-24T11:11:54Z ddc: - '530' department: - _id: '15' - _id: '230' - _id: '61' - _id: '51' doi: 10.1063/5.0061358 file: - access_level: local content_type: application/pdf creator: fossie date_created: 2021-11-04T13:46:27Z date_updated: 2021-11-04T13:46:27Z embargo: 2022-11-04 embargo_to: open_access file_id: '27157' file_name: 2021-11 Widhalm - APL - Optoelectronic sampling of ultrafast electric transients with single quantum dots (published version).pdf file_size: 1999652 relation: main_file file_date_updated: 2021-11-04T13:46:27Z has_accepted_license: '1' intvolume: ' 119' keyword: - tet_topic_qd language: - iso: eng page: '181109' project: - _id: '74' name: TRR 142 - Subproject C4 - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing - _id: '60' name: TRR 142 - Subproject A3 publication: Applied Physics Letters publication_identifier: issn: - 0003-6951 - 1077-3118 publication_status: published status: public title: Optoelectronic sampling of ultrafast electric transients with single quantum dots type: journal_article user_id: '158' volume: 119 year: '2021' ... --- _id: '23816' abstract: - lang: eng text: Employing the ultrafast control of electronic states of a semiconductor quantum dot in a cavity, we introduce an approach to achieve on-demand emission of single photons with almost perfect indistinguishability and photon pairs with near ideal entanglement. Our scheme is based on optical excitation off resonant to a cavity mode followed by ultrafast control of the electronic states using the time-dependent quantum-confined Stark effect, which then allows for cavity-resonant emission. Our theoretical analysis considers cavity-loss mechanisms, the Stark effect, and phonon-induced dephasing, allowing realistic predictions for finite temperatures. author: - first_name: David full_name: Bauch, David last_name: Bauch - first_name: Dirk Florian full_name: Heinze, Dirk Florian id: '10904' last_name: Heinze - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Klaus full_name: Jöns, Klaus id: '85353' last_name: Jöns - first_name: Stefan full_name: Schumacher, Stefan id: '27271' last_name: Schumacher orcid: 0000-0003-4042-4951 citation: ama: Bauch D, Heinze DF, Förstner J, Jöns K, Schumacher S. Ultrafast electric control of cavity mediated single-photon and photon-pair generation with semiconductor quantum dots. Physical Review B. 2021;104:085308. doi:10.1103/physrevb.104.085308 apa: Bauch, D., Heinze, D. F., Förstner, J., Jöns, K., & Schumacher, S. (2021). Ultrafast electric control of cavity mediated single-photon and photon-pair generation with semiconductor quantum dots. Physical Review B, 104, 085308. https://doi.org/10.1103/physrevb.104.085308 bibtex: '@article{Bauch_Heinze_Förstner_Jöns_Schumacher_2021, title={Ultrafast electric control of cavity mediated single-photon and photon-pair generation with semiconductor quantum dots}, volume={104}, DOI={10.1103/physrevb.104.085308}, journal={Physical Review B}, author={Bauch, David and Heinze, Dirk Florian and Förstner, Jens and Jöns, Klaus and Schumacher, Stefan}, year={2021}, pages={085308} }' chicago: 'Bauch, David, Dirk Florian Heinze, Jens Förstner, Klaus Jöns, and Stefan Schumacher. “Ultrafast Electric Control of Cavity Mediated Single-Photon and Photon-Pair Generation with Semiconductor Quantum Dots.” Physical Review B 104 (2021): 085308. https://doi.org/10.1103/physrevb.104.085308.' ieee: 'D. Bauch, D. F. Heinze, J. Förstner, K. Jöns, and S. Schumacher, “Ultrafast electric control of cavity mediated single-photon and photon-pair generation with semiconductor quantum dots,” Physical Review B, vol. 104, p. 085308, 2021, doi: 10.1103/physrevb.104.085308.' mla: Bauch, David, et al. “Ultrafast Electric Control of Cavity Mediated Single-Photon and Photon-Pair Generation with Semiconductor Quantum Dots.” Physical Review B, vol. 104, 2021, p. 085308, doi:10.1103/physrevb.104.085308. short: D. Bauch, D.F. Heinze, J. Förstner, K. Jöns, S. Schumacher, Physical Review B 104 (2021) 085308. date_created: 2021-09-06T18:02:44Z date_updated: 2023-04-20T15:33:52Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '15' - _id: '170' - _id: '297' - _id: '429' - _id: '623' - _id: '35' doi: 10.1103/physrevb.104.085308 file: - access_level: open_access content_type: application/pdf creator: fossie date_created: 2021-09-07T06:32:25Z date_updated: 2021-09-07T07:43:47Z file_id: '23818' file_name: 2021-08 Bauch PhysRevB.104.085308.pdf file_size: 887439 relation: main_file file_date_updated: 2021-09-07T07:43:47Z has_accepted_license: '1' intvolume: ' 104' keyword: - tet_topic_qd language: - iso: eng oa: '1' page: '085308' project: - _id: '53' name: TRR 142 - _id: '54' name: TRR 142 - Project Area A - _id: '60' name: TRR 142 - Subproject A3 - _id: '52' 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' publication: Physical Review B publication_identifier: issn: - 2469-9950 - 2469-9969 publication_status: published status: public title: Ultrafast electric control of cavity mediated single-photon and photon-pair generation with semiconductor quantum dots type: journal_article user_id: '16199' volume: 104 year: '2021' ... --- _id: '21587' abstract: - lang: eng text: Solving partial differential equations on unstructured grids is a cornerstone of engineering and scientific computing. Nowadays, heterogeneous parallel platforms with CPUs, GPUs, and FPGAs enable energy-efficient and computationally demanding simulations. We developed the HighPerMeshes C++-embedded Domain-Specific Language (DSL) for bridging the abstraction gap between the mathematical and algorithmic formulation of mesh-based algorithms for PDE problems on the one hand and an increasing number of heterogeneous platforms with their different parallel programming and runtime models on the other hand. Thus, the HighPerMeshes DSL aims at higher productivity in the code development process for multiple target platforms. We introduce the concepts as well as the basic structure of the HighPerMeshes DSL, and demonstrate its usage with three examples, a Poisson and monodomain problem, respectively, solved by the continuous finite element method, and the discontinuous Galerkin method for Maxwell’s equation. The mapping of the abstract algorithmic description onto parallel hardware, including distributed memory compute clusters, is presented. Finally, the achievable performance and scalability are demonstrated for a typical example problem on a multi-core CPU cluster. author: - first_name: Samer full_name: Alhaddad, Samer id: '42456' last_name: Alhaddad - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Stefan full_name: Groth, Stefan last_name: Groth - first_name: Daniel full_name: Grünewald, Daniel last_name: Grünewald - first_name: Yevgen full_name: Grynko, Yevgen id: '26059' last_name: Grynko - first_name: Frank full_name: Hannig, Frank last_name: Hannig - first_name: Tobias full_name: Kenter, Tobias id: '3145' last_name: Kenter - first_name: Franz-Josef full_name: Pfreundt, Franz-Josef last_name: Pfreundt - first_name: Christian full_name: Plessl, Christian id: '16153' last_name: Plessl orcid: 0000-0001-5728-9982 - first_name: Merlind full_name: Schotte, Merlind last_name: Schotte - first_name: Thomas full_name: Steinke, Thomas last_name: Steinke - first_name: Jürgen full_name: Teich, Jürgen last_name: Teich - first_name: Martin full_name: Weiser, Martin last_name: Weiser - first_name: Florian full_name: Wende, Florian last_name: Wende citation: ama: 'Alhaddad S, Förstner J, Groth S, et al. HighPerMeshes – A Domain-Specific Language for Numerical Algorithms on Unstructured Grids. In: Euro-Par 2020: Parallel Processing Workshops. ; 2021. doi:10.1007/978-3-030-71593-9_15' apa: 'Alhaddad, S., Förstner, J., Groth, S., Grünewald, D., Grynko, Y., Hannig, F., Kenter, T., Pfreundt, F.-J., Plessl, C., Schotte, M., Steinke, T., Teich, J., Weiser, M., & Wende, F. (2021). HighPerMeshes – A Domain-Specific Language for Numerical Algorithms on Unstructured Grids. In Euro-Par 2020: Parallel Processing Workshops. https://doi.org/10.1007/978-3-030-71593-9_15' bibtex: '@inbook{Alhaddad_Förstner_Groth_Grünewald_Grynko_Hannig_Kenter_Pfreundt_Plessl_Schotte_et al._2021, place={Cham}, title={HighPerMeshes – A Domain-Specific Language for Numerical Algorithms on Unstructured Grids}, DOI={10.1007/978-3-030-71593-9_15}, booktitle={Euro-Par 2020: Parallel Processing Workshops}, author={Alhaddad, Samer and Förstner, Jens and Groth, Stefan and Grünewald, Daniel and Grynko, Yevgen and Hannig, Frank and Kenter, Tobias and Pfreundt, Franz-Josef and Plessl, Christian and Schotte, Merlind and et al.}, year={2021} }' chicago: 'Alhaddad, Samer, Jens Förstner, Stefan Groth, Daniel Grünewald, Yevgen Grynko, Frank Hannig, Tobias Kenter, et al. “HighPerMeshes – A Domain-Specific Language for Numerical Algorithms on Unstructured Grids.” In Euro-Par 2020: Parallel Processing Workshops. Cham, 2021. https://doi.org/10.1007/978-3-030-71593-9_15.' ieee: 'S. Alhaddad et al., “HighPerMeshes – A Domain-Specific Language for Numerical Algorithms on Unstructured Grids,” in Euro-Par 2020: Parallel Processing Workshops, Cham, 2021.' mla: 'Alhaddad, Samer, et al. “HighPerMeshes – A Domain-Specific Language for Numerical Algorithms on Unstructured Grids.” Euro-Par 2020: Parallel Processing Workshops, 2021, doi:10.1007/978-3-030-71593-9_15.' short: 'S. Alhaddad, J. Förstner, S. Groth, D. Grünewald, Y. Grynko, F. Hannig, T. Kenter, F.-J. Pfreundt, C. Plessl, M. Schotte, T. Steinke, J. Teich, M. Weiser, F. Wende, in: Euro-Par 2020: Parallel Processing Workshops, Cham, 2021.' date_created: 2021-03-31T19:39:42Z date_updated: 2023-09-26T11:40:25Z ddc: - '004' department: - _id: '61' - _id: '230' - _id: '429' - _id: '27' - _id: '518' doi: 10.1007/978-3-030-71593-9_15 file: - access_level: closed content_type: application/pdf creator: fossie date_created: 2021-03-31T19:42:52Z date_updated: 2021-03-31T19:42:52Z file_id: '21588' file_name: 2021-03 Alhaddad2021_Chapter_HighPerMeshesADomain-SpecificL.pdf file_size: 564398 relation: main_file success: 1 file_date_updated: 2021-03-31T19:42:52Z has_accepted_license: '1' keyword: - tet_topic_hpc language: - iso: eng place: Cham project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: 'Euro-Par 2020: Parallel Processing Workshops' publication_identifier: isbn: - '9783030715922' - '9783030715939' issn: - 0302-9743 - 1611-3349 publication_status: published quality_controlled: '1' status: public title: HighPerMeshes – A Domain-Specific Language for Numerical Algorithms on Unstructured Grids type: book_chapter user_id: '15278' year: '2021' ... --- _id: '24788' author: - first_name: Samer full_name: Alhaddad, Samer id: '42456' last_name: Alhaddad - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Stefan full_name: Groth, Stefan last_name: Groth - first_name: Daniel full_name: Grünewald, Daniel last_name: Grünewald - first_name: Yevgen full_name: Grynko, Yevgen id: '26059' last_name: Grynko - first_name: Frank full_name: Hannig, Frank last_name: Hannig - first_name: Tobias full_name: Kenter, Tobias id: '3145' last_name: Kenter - first_name: Franz‐Josef full_name: Pfreundt, Franz‐Josef last_name: Pfreundt - first_name: Christian full_name: Plessl, Christian id: '16153' last_name: Plessl orcid: 0000-0001-5728-9982 - first_name: Merlind full_name: Schotte, Merlind last_name: Schotte - first_name: Thomas full_name: Steinke, Thomas last_name: Steinke - first_name: Jürgen full_name: Teich, Jürgen last_name: Teich - first_name: Martin full_name: Weiser, Martin last_name: Weiser - first_name: Florian full_name: Wende, Florian last_name: Wende citation: ama: 'Alhaddad S, Förstner J, Groth S, et al. The HighPerMeshes framework for numerical algorithms on unstructured grids. Concurrency and Computation: Practice and Experience. Published online 2021:e6616. doi:10.1002/cpe.6616' apa: 'Alhaddad, S., Förstner, J., Groth, S., Grünewald, D., Grynko, Y., Hannig, F., Kenter, T., Pfreundt, F., Plessl, C., Schotte, M., Steinke, T., Teich, J., Weiser, M., & Wende, F. (2021). The HighPerMeshes framework for numerical algorithms on unstructured grids. Concurrency and Computation: Practice and Experience, e6616. https://doi.org/10.1002/cpe.6616' bibtex: '@article{Alhaddad_Förstner_Groth_Grünewald_Grynko_Hannig_Kenter_Pfreundt_Plessl_Schotte_et al._2021, title={The HighPerMeshes framework for numerical algorithms on unstructured grids}, DOI={10.1002/cpe.6616}, journal={Concurrency and Computation: Practice and Experience}, author={Alhaddad, Samer and Förstner, Jens and Groth, Stefan and Grünewald, Daniel and Grynko, Yevgen and Hannig, Frank and Kenter, Tobias and Pfreundt, Franz‐Josef and Plessl, Christian and Schotte, Merlind and et al.}, year={2021}, pages={e6616} }' chicago: 'Alhaddad, Samer, Jens Förstner, Stefan Groth, Daniel Grünewald, Yevgen Grynko, Frank Hannig, Tobias Kenter, et al. “The HighPerMeshes Framework for Numerical Algorithms on Unstructured Grids.” Concurrency and Computation: Practice and Experience, 2021, e6616. https://doi.org/10.1002/cpe.6616.' ieee: 'S. Alhaddad et al., “The HighPerMeshes framework for numerical algorithms on unstructured grids,” Concurrency and Computation: Practice and Experience, p. e6616, 2021, doi: 10.1002/cpe.6616.' mla: 'Alhaddad, Samer, et al. “The HighPerMeshes Framework for Numerical Algorithms on Unstructured Grids.” Concurrency and Computation: Practice and Experience, 2021, p. e6616, doi:10.1002/cpe.6616.' short: 'S. Alhaddad, J. Förstner, S. Groth, D. Grünewald, Y. Grynko, F. Hannig, T. Kenter, F. Pfreundt, C. Plessl, M. Schotte, T. Steinke, J. Teich, M. Weiser, F. Wende, Concurrency and Computation: Practice and Experience (2021) e6616.' date_created: 2021-09-22T06:15:50Z date_updated: 2023-09-26T11:42:19Z ddc: - '004' department: - _id: '61' - _id: '230' - _id: '27' - _id: '518' doi: 10.1002/cpe.6616 file: - access_level: open_access content_type: application/pdf creator: fossie date_created: 2021-09-22T06:19:29Z date_updated: 2021-09-22T06:19:29Z file_id: '24789' file_name: 2021-09 Alhaddad - Concurrency... - The HighPerMeshes framework for numerical algorithms on unstructured grids.pdf file_size: 2300152 relation: main_file file_date_updated: 2021-09-22T06:19:29Z has_accepted_license: '1' keyword: - tet_topic_hpc language: - iso: eng oa: '1' page: e6616 project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing - _id: '33' grant_number: 01|H16005A name: HighPerMeshes publication: 'Concurrency and Computation: Practice and Experience' publication_identifier: issn: - 1532-0626 - 1532-0634 publication_status: published quality_controlled: '1' status: public title: The HighPerMeshes framework for numerical algorithms on unstructured grids type: journal_article user_id: '15278' year: '2021' ... --- _id: '20189' abstract: - lang: eng text: A dielectric step-index optical fiber with tube-like profile is considered, being positioned with a small gap on top of a dielectric slab waveguide. We propose a 2.5-D hybrid analytical/numerical coupled mode model for the evanescent excitation of the tube through semi-guided waves propagating in the slab at oblique angles. The model combines the directional polarized modes supported by the slab with analytic solutions for the TE-, TM-, and orbital-angular-momentum (OAM) modes of the tube-shaped fiber. Implementational details of the scheme are discussed, complemented by finite-element simulations for verification purposes. Our results include configurations with resonant in-fiber excitation of OAM modes with large orbital angular momentum and strong field enhancement. article_number: '472' author: - first_name: Manfred full_name: Hammer, Manfred id: '48077' last_name: Hammer orcid: 0000-0002-6331-9348 - first_name: Lena full_name: Ebers, Lena id: '40428' last_name: Ebers - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: Hammer M, Ebers L, Förstner J. Hybrid coupled mode modelling of the evanescent excitation of a dielectric tube by semi-guided waves at oblique angles. Optical and Quantum Electronics. 2020;52. doi:10.1007/s11082-020-02595-z apa: Hammer, M., Ebers, L., & Förstner, J. (2020). Hybrid coupled mode modelling of the evanescent excitation of a dielectric tube by semi-guided waves at oblique angles. Optical and Quantum Electronics, 52. https://doi.org/10.1007/s11082-020-02595-z bibtex: '@article{Hammer_Ebers_Förstner_2020, title={Hybrid coupled mode modelling of the evanescent excitation of a dielectric tube by semi-guided waves at oblique angles}, volume={52}, DOI={10.1007/s11082-020-02595-z}, number={472}, journal={Optical and Quantum Electronics}, author={Hammer, Manfred and Ebers, Lena and Förstner, Jens}, year={2020} }' chicago: Hammer, Manfred, Lena Ebers, and Jens Förstner. “Hybrid Coupled Mode Modelling of the Evanescent Excitation of a Dielectric Tube by Semi-Guided Waves at Oblique Angles.” Optical and Quantum Electronics 52 (2020). https://doi.org/10.1007/s11082-020-02595-z. ieee: M. Hammer, L. Ebers, and J. Förstner, “Hybrid coupled mode modelling of the evanescent excitation of a dielectric tube by semi-guided waves at oblique angles,” Optical and Quantum Electronics, vol. 52, 2020. mla: Hammer, Manfred, et al. “Hybrid Coupled Mode Modelling of the Evanescent Excitation of a Dielectric Tube by Semi-Guided Waves at Oblique Angles.” Optical and Quantum Electronics, vol. 52, 472, 2020, doi:10.1007/s11082-020-02595-z. short: M. Hammer, L. Ebers, J. Förstner, Optical and Quantum Electronics 52 (2020). date_created: 2020-10-24T08:03:58Z date_updated: 2022-01-06T06:54:22Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' doi: 10.1007/s11082-020-02595-z file: - access_level: closed content_type: application/pdf creator: fossie date_created: 2020-10-24T08:11:40Z date_updated: 2020-10-24T08:11:40Z file_id: '20190' file_name: 2020-10 Hammer - OQE - Hybrid Coupled Mode Modelling Dielectric Tube.pdf file_size: 2212769 relation: main_file success: 1 file_date_updated: 2020-10-24T08:11:40Z has_accepted_license: '1' intvolume: ' 52' keyword: - tet_topic_waveguides language: - iso: eng project: - _id: '56' name: TRR 142 - Project Area C - _id: '75' name: TRR 142 - Subproject C5 - _id: '53' name: TRR 142 publication: Optical and Quantum Electronics publication_identifier: issn: - 0306-8919 - 1572-817X publication_status: published status: public title: Hybrid coupled mode modelling of the evanescent excitation of a dielectric tube by semi-guided waves at oblique angles type: journal_article user_id: '158' volume: 52 year: '2020' ... --- _id: '20233' abstract: - lang: eng text: The challenge of designing new tunable nonlinear dielectric materials with tailored properties has attracted an increasing amount of interest recently. Herein, we study the effective nonlinear dielectric response of a stochastic paraelectric-dielectric composite consisting of equilibrium distributions of circular and partially penetrable disks (or parallel, infinitely long, identical, partially penetrable, circular cylinders) of a dielectric phase randomly dispersed in a continuous matrix of a paraelectric phase. The random microstructures were generated using the Metropolis Monte Carlo algorithm. The evaluation of the effective permittivity and tunability were carried out by employing either a Landau thermodynamic model or its Johnson’s approximation to describe the field-dependent permittivity of the paraelectric phase and solving continuum-electrostatics equations using finite element calculations. We reveal that the percolation threshold in this composite governs the critical behavior of the effective permittivity and tunability. For microstructures below the percolation threshold, our simulations demonstrate a strong nonlinear behaviour of the field-dependent effective permittivity and very high tunability that increases as a function of dielectric phase concentration. Above the percolation threshold, the effective permittivity shows the tendency to linearization and the tunability dramatically drops down. The highly reduced permittivity and extraordinarily high tunability are obtained for the composites with dielectric impenetrable disks at high concentrations, in which the triggering of the percolation transition is avoided. The reported results cast light on distinct nonlinear behaviour of 2D and 3D stochastic composites and can guide the design of novel composites with the controlled morphology and tailored permittivity and tunability. author: - first_name: Viktor full_name: Myroshnychenko, Viktor id: '46371' last_name: Myroshnychenko - first_name: Stanislav full_name: Smirnov, Stanislav last_name: Smirnov - first_name: Pious Mathews Mulavarickal full_name: Jose, Pious Mathews Mulavarickal last_name: Jose - first_name: Christian full_name: Brosseau, Christian last_name: Brosseau - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: Myroshnychenko V, Smirnov S, Jose PMM, Brosseau C, Förstner J. Nonlinear dielectric properties of random paraelectric-dielectric composites. Acta Materialia. 2020;203:116432. doi:10.1016/j.actamat.2020.10.051 apa: Myroshnychenko, V., Smirnov, S., Jose, P. M. M., Brosseau, C., & Förstner, J. (2020). Nonlinear dielectric properties of random paraelectric-dielectric composites. Acta Materialia, 203, 116432. https://doi.org/10.1016/j.actamat.2020.10.051 bibtex: '@article{Myroshnychenko_Smirnov_Jose_Brosseau_Förstner_2020, title={Nonlinear dielectric properties of random paraelectric-dielectric composites}, volume={203}, DOI={10.1016/j.actamat.2020.10.051}, journal={Acta Materialia}, author={Myroshnychenko, Viktor and Smirnov, Stanislav and Jose, Pious Mathews Mulavarickal and Brosseau, Christian and Förstner, Jens}, year={2020}, pages={116432} }' chicago: 'Myroshnychenko, Viktor, Stanislav Smirnov, Pious Mathews Mulavarickal Jose, Christian Brosseau, and Jens Förstner. “Nonlinear Dielectric Properties of Random Paraelectric-Dielectric Composites.” Acta Materialia 203 (2020): 116432. https://doi.org/10.1016/j.actamat.2020.10.051.' ieee: V. Myroshnychenko, S. Smirnov, P. M. M. Jose, C. Brosseau, and J. Förstner, “Nonlinear dielectric properties of random paraelectric-dielectric composites,” Acta Materialia, vol. 203, p. 116432, 2020. mla: Myroshnychenko, Viktor, et al. “Nonlinear Dielectric Properties of Random Paraelectric-Dielectric Composites.” Acta Materialia, vol. 203, 2020, p. 116432, doi:10.1016/j.actamat.2020.10.051. short: V. Myroshnychenko, S. Smirnov, P.M.M. Jose, C. Brosseau, J. Förstner, Acta Materialia 203 (2020) 116432. date_created: 2020-10-30T13:51:42Z date_updated: 2022-01-06T06:54:24Z ddc: - '530' department: - _id: '61' - _id: '230' doi: 10.1016/j.actamat.2020.10.051 file: - access_level: open_access content_type: application/pdf creator: fossie date_created: 2020-10-30T13:52:58Z date_updated: 2020-10-30T13:52:58Z file_id: '20234' file_name: 2020-10 Myroshnychenko - Acta Material (accepted preprint)_compressed.pdf file_size: 3934721 relation: main_file title: (Accepted Preprint) file_date_updated: 2020-10-30T13:52:58Z has_accepted_license: '1' intvolume: ' 203' language: - iso: eng oa: '1' page: '116432' project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Acta Materialia publication_identifier: issn: - 1359-6454 publication_status: published status: public title: Nonlinear dielectric properties of random paraelectric-dielectric composites type: journal_article user_id: '158' volume: 203 year: '2020' ... --- _id: '17803' abstract: - lang: eng text: We numerically simulate multiple light scattering in discrete disordered media represented by large clusters of irregular non-absorbing particles. The packing density of clusters is 0.5. With such conditions diffuse scattering is significantly reduced and light transport follows propagation channels that are determined by the particle size and topology of the medium. This kind of localization produces coherent backscattering intensity surge and enhanced negative polarization branch if compared to lower density samples. author: - first_name: Yevgen full_name: Grynko, Yevgen id: '26059' last_name: Grynko - first_name: Yuriy full_name: Shkuratov, Yuriy last_name: Shkuratov - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: Grynko Y, Shkuratov Y, Förstner J. Light backscattering from large clusters of densely packed irregular particles. Journal of Quantitative Spectroscopy and Radiative Transfer. 2020;255:107234. doi:10.1016/j.jqsrt.2020.107234 apa: Grynko, Y., Shkuratov, Y., & Förstner, J. (2020). Light backscattering from large clusters of densely packed irregular particles. Journal of Quantitative Spectroscopy and Radiative Transfer, 255, 107234. https://doi.org/10.1016/j.jqsrt.2020.107234 bibtex: '@article{Grynko_Shkuratov_Förstner_2020, title={Light backscattering from large clusters of densely packed irregular particles}, volume={255}, DOI={10.1016/j.jqsrt.2020.107234}, journal={Journal of Quantitative Spectroscopy and Radiative Transfer}, author={Grynko, Yevgen and Shkuratov, Yuriy and Förstner, Jens}, year={2020}, pages={107234} }' chicago: 'Grynko, Yevgen, Yuriy Shkuratov, and Jens Förstner. “Light Backscattering from Large Clusters of Densely Packed Irregular Particles.” Journal of Quantitative Spectroscopy and Radiative Transfer 255 (2020): 107234. https://doi.org/10.1016/j.jqsrt.2020.107234.' ieee: Y. Grynko, Y. Shkuratov, and J. Förstner, “Light backscattering from large clusters of densely packed irregular particles,” Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 255, p. 107234, 2020. mla: Grynko, Yevgen, et al. “Light Backscattering from Large Clusters of Densely Packed Irregular Particles.” Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 255, 2020, p. 107234, doi:10.1016/j.jqsrt.2020.107234. short: Y. Grynko, Y. Shkuratov, J. Förstner, Journal of Quantitative Spectroscopy and Radiative Transfer 255 (2020) 107234. date_created: 2020-08-11T09:07:04Z date_updated: 2022-01-06T06:53:20Z ddc: - '530' department: - _id: '61' - _id: '230' doi: 10.1016/j.jqsrt.2020.107234 file: - access_level: open_access content_type: application/pdf creator: fossie date_created: 2020-08-11T15:24:31Z date_updated: 2020-08-11T15:24:31Z file_id: '17814' file_name: 2020-08 Grynko - JQSRT PREPRINT - Large Cluster.pdf file_size: 1567605 relation: main_file title: Preprint file_date_updated: 2020-08-11T15:24:31Z has_accepted_license: '1' intvolume: ' 255' keyword: - tet_topic_scattering language: - iso: eng oa: '1' page: '107234' project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Journal of Quantitative Spectroscopy and Radiative Transfer publication_identifier: issn: - 0022-4073 publication_status: published status: public title: Light backscattering from large clusters of densely packed irregular particles type: journal_article user_id: '158' volume: 255 year: '2020' ... --- _id: '20372' abstract: - lang: eng text: A stepwise angular spectrum method (SASM) for curved interfaces is presented to calculate the wave propagation in planar lens-like integrated optical structures based on photonic slab waveguides. The method is derived and illustrated for an effective 2D setup first and then for 3D slab waveguide lenses. We employ slab waveguides of different thicknesses connected by curved surfaces to realize a lens-like structure. To simulate the wave propagation in 3D including reflection and scattering losses, the stepwise angular spectrum method is combined with full vectorial finite element computations for subproblems with lower complexity. Our SASM results show excellent agreement with rigorous numerical simulations of the full structures with a substantially lower computational effort and can be utilized for the simulation-based design and optimization of complex and large scale setups. author: - first_name: Lena full_name: Ebers, Lena id: '40428' last_name: Ebers - first_name: Manfred full_name: Hammer, Manfred id: '48077' last_name: Hammer orcid: 0000-0002-6331-9348 - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: Ebers L, Hammer M, Förstner J. Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method. Optics Express. 2020;28(24):36361. doi:10.1364/oe.409612 apa: Ebers, L., Hammer, M., & Förstner, J. (2020). Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method. Optics Express, 28(24), 36361. https://doi.org/10.1364/oe.409612 bibtex: '@article{Ebers_Hammer_Förstner_2020, title={Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method}, volume={28}, DOI={10.1364/oe.409612}, number={24}, journal={Optics Express}, author={Ebers, Lena and Hammer, Manfred and Förstner, Jens}, year={2020}, pages={36361} }' chicago: 'Ebers, Lena, Manfred Hammer, and Jens Förstner. “Light Diffraction in Slab Waveguide Lenses Simulated with the Stepwise Angular Spectrum Method.” Optics Express 28, no. 24 (2020): 36361. https://doi.org/10.1364/oe.409612.' ieee: L. Ebers, M. Hammer, and J. Förstner, “Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method,” Optics Express, vol. 28, no. 24, p. 36361, 2020. mla: Ebers, Lena, et al. “Light Diffraction in Slab Waveguide Lenses Simulated with the Stepwise Angular Spectrum Method.” Optics Express, vol. 28, no. 24, 2020, p. 36361, doi:10.1364/oe.409612. short: L. Ebers, M. Hammer, J. Förstner, Optics Express 28 (2020) 36361. date_created: 2020-11-17T09:52:47Z date_updated: 2022-01-06T06:54:26Z department: - _id: '61' - _id: '230' - _id: '429' doi: 10.1364/oe.409612 intvolume: ' 28' issue: '24' keyword: - tet_topic_waveguides language: - iso: eng page: '36361' project: - _id: '53' name: TRR 142 - _id: '56' name: TRR 142 - Project Area C - _id: '74' name: TRR 142 - Subproject C4 - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Optics Express publication_identifier: issn: - 1094-4087 publication_status: published status: public title: Light diffraction in slab waveguide lenses simulated with the stepwise angular spectrum method type: journal_article user_id: '158' volume: 28 year: '2020' ... --- _id: '21719' abstract: - lang: eng text: We fabricate silicon tapers to increase the mode overlap of superconducting detectors on Ti:LiNbO3 waveguides. Mode images show a reduction in mode size from 6 µm to 2 µm FWHM, agreeing with beam propagation simulations. article_number: QTh7A.8 author: - first_name: Maximilian full_name: Protte, Maximilian id: '46170' last_name: Protte - first_name: Lena full_name: Ebers, Lena id: '40428' last_name: Ebers - first_name: Manfred full_name: Hammer, Manfred id: '48077' last_name: Hammer orcid: 0000-0002-6331-9348 - first_name: Jan Philipp full_name: Höpker, Jan Philipp id: '33913' last_name: Höpker - first_name: Maximilian full_name: Albert, Maximilian last_name: Albert - first_name: Viktor full_name: Quiring, Viktor last_name: Quiring - first_name: Cedrik full_name: Meier, Cedrik id: '20798' last_name: Meier orcid: https://orcid.org/0000-0002-3787-3572 - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Christine full_name: Silberhorn, Christine id: '26263' last_name: Silberhorn - first_name: Tim full_name: Bartley, Tim id: '49683' last_name: Bartley citation: ama: 'Protte M, Ebers L, Hammer M, et al. Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics. In: OSA Quantum 2.0 Conference. ; 2020. doi:10.1364/quantum.2020.qth7a.8' apa: Protte, M., Ebers, L., Hammer, M., Höpker, J. P., Albert, M., Quiring, V., Meier, C., Förstner, J., Silberhorn, C., & Bartley, T. (2020). Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics. OSA Quantum 2.0 Conference, Article QTh7A.8. https://doi.org/10.1364/quantum.2020.qth7a.8 bibtex: '@inproceedings{Protte_Ebers_Hammer_Höpker_Albert_Quiring_Meier_Förstner_Silberhorn_Bartley_2020, title={Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics}, DOI={10.1364/quantum.2020.qth7a.8}, number={QTh7A.8}, booktitle={OSA Quantum 2.0 Conference}, author={Protte, Maximilian and Ebers, Lena and Hammer, Manfred and Höpker, Jan Philipp and Albert, Maximilian and Quiring, Viktor and Meier, Cedrik and Förstner, Jens and Silberhorn, Christine and Bartley, Tim}, year={2020} }' chicago: Protte, Maximilian, Lena Ebers, Manfred Hammer, Jan Philipp Höpker, Maximilian Albert, Viktor Quiring, Cedrik Meier, Jens Förstner, Christine Silberhorn, and Tim Bartley. “Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics.” In OSA Quantum 2.0 Conference, 2020. https://doi.org/10.1364/quantum.2020.qth7a.8. ieee: 'M. Protte et al., “Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics,” 2020, doi: 10.1364/quantum.2020.qth7a.8.' mla: Protte, Maximilian, et al. “Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics.” OSA Quantum 2.0 Conference, QTh7A.8, 2020, doi:10.1364/quantum.2020.qth7a.8. short: 'M. Protte, L. Ebers, M. Hammer, J.P. Höpker, M. Albert, V. Quiring, C. Meier, J. Förstner, C. Silberhorn, T. Bartley, in: OSA Quantum 2.0 Conference, 2020.' date_created: 2021-04-22T15:56:45Z date_updated: 2022-10-25T07:41:15Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' - _id: '15' doi: 10.1364/quantum.2020.qth7a.8 file: - access_level: closed content_type: application/pdf creator: fossie date_created: 2021-04-22T15:58:52Z date_updated: 2021-04-22T15:58:52Z file_id: '21720' file_name: Quantum2.0-Towards SSC hybrid integration for quantum photonics[4936].pdf file_size: 1704199 relation: main_file success: 1 file_date_updated: 2021-04-22T15:58:52Z has_accepted_license: '1' keyword: - tet_topic_waveguide language: - iso: eng publication: OSA Quantum 2.0 Conference publication_identifier: isbn: - '9781943580811' publication_status: published status: public title: Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics type: conference user_id: '49683' year: '2020' ... --- _id: '17322' author: - first_name: Amlan full_name: Mukherjee, Amlan last_name: Mukherjee - first_name: Alex full_name: Widhalm, Alex last_name: Widhalm - first_name: Dustin full_name: Siebert, Dustin last_name: Siebert - first_name: Sebastian full_name: Krehs, Sebastian last_name: Krehs - first_name: Nandlal full_name: Sharma, Nandlal last_name: Sharma - first_name: Andreas full_name: Thiede, Andreas id: '538' last_name: Thiede - first_name: Dirk full_name: Reuter, Dirk id: '37763' last_name: Reuter - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Artur full_name: Zrenner, Artur id: '606' last_name: Zrenner orcid: 0000-0002-5190-0944 citation: ama: Mukherjee A, Widhalm A, Siebert D, et al. Electrically controlled rapid adiabatic passage in a single quantum dot. Applied Physics Letters. 2020;116:251103. doi:10.1063/5.0012257 apa: Mukherjee, A., Widhalm, A., Siebert, D., Krehs, S., Sharma, N., Thiede, A., Reuter, D., Förstner, J., & Zrenner, A. (2020). Electrically controlled rapid adiabatic passage in a single quantum dot. Applied Physics Letters, 116, 251103. https://doi.org/10.1063/5.0012257 bibtex: '@article{Mukherjee_Widhalm_Siebert_Krehs_Sharma_Thiede_Reuter_Förstner_Zrenner_2020, title={Electrically controlled rapid adiabatic passage in a single quantum dot}, volume={116}, DOI={10.1063/5.0012257}, journal={Applied Physics Letters}, author={Mukherjee, Amlan and Widhalm, Alex and Siebert, Dustin and Krehs, Sebastian and Sharma, Nandlal and Thiede, Andreas and Reuter, Dirk and Förstner, Jens and Zrenner, Artur}, year={2020}, pages={251103} }' chicago: 'Mukherjee, Amlan, Alex Widhalm, Dustin Siebert, Sebastian Krehs, Nandlal Sharma, Andreas Thiede, Dirk Reuter, Jens Förstner, and Artur Zrenner. “Electrically Controlled Rapid Adiabatic Passage in a Single Quantum Dot.” Applied Physics Letters 116 (2020): 251103. https://doi.org/10.1063/5.0012257.' ieee: 'A. Mukherjee et al., “Electrically controlled rapid adiabatic passage in a single quantum dot,” Applied Physics Letters, vol. 116, p. 251103, 2020, doi: 10.1063/5.0012257.' mla: Mukherjee, Amlan, et al. “Electrically Controlled Rapid Adiabatic Passage in a Single Quantum Dot.” Applied Physics Letters, vol. 116, 2020, p. 251103, doi:10.1063/5.0012257. short: A. Mukherjee, A. Widhalm, D. Siebert, S. Krehs, N. Sharma, A. Thiede, D. Reuter, J. Förstner, A. Zrenner, Applied Physics Letters 116 (2020) 251103. date_created: 2020-06-25T12:31:42Z date_updated: 2023-01-24T11:12:09Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' - _id: '51' doi: 10.1063/5.0012257 file: - access_level: request content_type: application/pdf creator: fossie date_created: 2020-06-25T12:45:04Z date_updated: 2022-01-06T06:53:07Z embargo: 2021-06-25 embargo_to: open_access file_id: '17325' file_name: 2020-06 Widhalm - APL - Electrically controlled RAP in single QD (official).pdf file_size: 1359326 relation: main_file file_date_updated: 2022-01-06T06:53:07Z has_accepted_license: '1' intvolume: ' 116' keyword: - tet_topic_qd language: - iso: eng page: '251103' project: - _id: '56' name: TRR 142 - Project Area C - _id: '74' name: TRR 142 - Subproject C4 - _id: '53' name: TRR 142 - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Applied Physics Letters publication_identifier: issn: - 0003-6951 - 1077-3118 publication_status: published status: public title: Electrically controlled rapid adiabatic passage in a single quantum dot type: journal_article user_id: '158' volume: 116 year: '2020' ... --- _id: '39966' author: - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: A. full_name: Widhalm, A. last_name: Widhalm - first_name: A. full_name: Mukherjee, A. last_name: Mukherjee - first_name: S. full_name: Krehs, S. last_name: Krehs - first_name: B. full_name: Jonas, B. last_name: Jonas - first_name: K. full_name: Spychala, K. last_name: Spychala - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Andreas full_name: Thiede, Andreas id: '538' last_name: Thiede - first_name: Dirk full_name: Reuter, Dirk id: '37763' last_name: Reuter - first_name: Artur full_name: Zrenner, Artur id: '606' last_name: Zrenner orcid: 0000-0002-5190-0944 citation: ama: 'Förstner J, Widhalm A, Mukherjee A, et al. Ultrafast electric control of a single QD exciton. In: 11th International Conference on Quantum Dots. ; 2020.' apa: Förstner, J., Widhalm, A., Mukherjee, A., Krehs, S., Jonas, B., Spychala, K., Förstner, J., Thiede, A., Reuter, D., & Zrenner, A. (2020). Ultrafast electric control of a single QD exciton. 11th International Conference on Quantum Dots. bibtex: '@inproceedings{Förstner_Widhalm_Mukherjee_Krehs_Jonas_Spychala_Förstner_Thiede_Reuter_Zrenner_2020, place={Munich/Germany}, title={Ultrafast electric control of a single QD exciton}, booktitle={11th International Conference on Quantum Dots}, author={Förstner, Jens and Widhalm, A. and Mukherjee, A. and Krehs, S. and Jonas, B. and Spychala, K. and Förstner, Jens and Thiede, Andreas and Reuter, Dirk and Zrenner, Artur}, year={2020} }' chicago: Förstner, Jens, A. Widhalm, A. Mukherjee, S. Krehs, B. Jonas, K. Spychala, Jens Förstner, Andreas Thiede, Dirk Reuter, and Artur Zrenner. “Ultrafast Electric Control of a Single QD Exciton.” In 11th International Conference on Quantum Dots. Munich/Germany, 2020. ieee: J. Förstner et al., “Ultrafast electric control of a single QD exciton,” 2020. mla: Förstner, Jens, et al. “Ultrafast Electric Control of a Single QD Exciton.” 11th International Conference on Quantum Dots, 2020. short: 'J. Förstner, A. Widhalm, A. Mukherjee, S. Krehs, B. Jonas, K. Spychala, J. Förstner, A. Thiede, D. Reuter, A. Zrenner, in: 11th International Conference on Quantum Dots, Munich/Germany, 2020.' date_created: 2023-01-25T11:11:42Z date_updated: 2025-02-12T07:53:06Z department: - _id: '61' - _id: '230' - _id: '429' - _id: '51' language: - iso: eng place: Munich/Germany publication: 11th International Conference on Quantum Dots status: public title: Ultrafast electric control of a single QD exciton type: conference_abstract user_id: '42514' year: '2020' ... --- _id: '8872' abstract: - lang: eng text: We consider light scattering from a new type of model particle whose shape is represented in the form of a generalized ellipsoid having N foci, where N is greater than two. Such particles can be convex as well as concave. We use the geometrical optics approximation to study the light scattering from 3-foci particles. Non-zero elements of the scattering matrix are calculated for ensembles of randomly oriented independent transparent particles, m = n + i0. Several internal reflection orders are considered separately. It was found that the transmission-transmission (TT) and transmission-reflectance-transmission (TRT) components dominate in the formation of intensity of scattered light at large and small phase angles, respectively. We found a significant role of the total internal reflections of the TRT in the middle portion of the phase angle range. The main factors in the formation of positive linear polarization are the R and TRT component. The TT component is responsible for the formation of negative polarization branch at large phase angles. author: - first_name: Dmitriy full_name: Stankevich, Dmitriy last_name: Stankevich - first_name: Larissa full_name: Hradyska, Larissa last_name: Hradyska - first_name: Yuriy full_name: Shkuratov, Yuriy last_name: Shkuratov - first_name: Yevgen full_name: Grynko, Yevgen id: '26059' last_name: Grynko - first_name: Gorden full_name: Videen, Gorden last_name: Videen - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: Stankevich D, Hradyska L, Shkuratov Y, Grynko Y, Videen G, Förstner J. Light scattering by 3-Foci convex and concave particles in the geometrical optics approximation. Journal of Quantitative Spectroscopy and Radiative Transfer. 2019;231:49. doi:10.1016/j.jqsrt.2019.04.016 apa: Stankevich, D., Hradyska, L., Shkuratov, Y., Grynko, Y., Videen, G., & Förstner, J. (2019). Light scattering by 3-Foci convex and concave particles in the geometrical optics approximation. Journal of Quantitative Spectroscopy and Radiative Transfer, 231, 49. https://doi.org/10.1016/j.jqsrt.2019.04.016 bibtex: '@article{Stankevich_Hradyska_Shkuratov_Grynko_Videen_Förstner_2019, title={Light scattering by 3-Foci convex and concave particles in the geometrical optics approximation}, volume={231}, DOI={10.1016/j.jqsrt.2019.04.016}, journal={Journal of Quantitative Spectroscopy and Radiative Transfer}, author={Stankevich, Dmitriy and Hradyska, Larissa and Shkuratov, Yuriy and Grynko, Yevgen and Videen, Gorden and Förstner, Jens}, year={2019}, pages={49} }' chicago: 'Stankevich, Dmitriy, Larissa Hradyska, Yuriy Shkuratov, Yevgen Grynko, Gorden Videen, and Jens Förstner. “Light Scattering by 3-Foci Convex and Concave Particles in the Geometrical Optics Approximation.” Journal of Quantitative Spectroscopy and Radiative Transfer 231 (2019): 49. https://doi.org/10.1016/j.jqsrt.2019.04.016.' ieee: D. Stankevich, L. Hradyska, Y. Shkuratov, Y. Grynko, G. Videen, and J. Förstner, “Light scattering by 3-Foci convex and concave particles in the geometrical optics approximation,” Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 231, p. 49, 2019. mla: Stankevich, Dmitriy, et al. “Light Scattering by 3-Foci Convex and Concave Particles in the Geometrical Optics Approximation.” Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 231, 2019, p. 49, doi:10.1016/j.jqsrt.2019.04.016. short: D. Stankevich, L. Hradyska, Y. Shkuratov, Y. Grynko, G. Videen, J. Förstner, Journal of Quantitative Spectroscopy and Radiative Transfer 231 (2019) 49. date_created: 2019-04-11T07:38:54Z date_updated: 2022-01-06T07:04:04Z department: - _id: '61' doi: 10.1016/j.jqsrt.2019.04.016 intvolume: ' 231' keyword: - tet_topic_scattering language: - iso: eng page: '49' publication: Journal of Quantitative Spectroscopy and Radiative Transfer publication_identifier: issn: - 0022-4073 publication_status: published status: public title: Light scattering by 3-Foci convex and concave particles in the geometrical optics approximation type: journal_article user_id: '158' volume: 231 year: '2019' ... --- _id: '12908' author: - first_name: Manfred full_name: Hammer, Manfred id: '48077' last_name: Hammer orcid: 0000-0002-6331-9348 - first_name: Lena full_name: Ebers, Lena id: '40428' last_name: Ebers - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: 'Hammer M, Ebers L, Förstner J. Oblique quasi-lossless excitation of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection coating. Journal of the Optical Society of America B. 2019;36:2395. doi:10.1364/josab.36.002395' apa: 'Hammer, M., Ebers, L., & Förstner, J. (2019). Oblique quasi-lossless excitation of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection coating. Journal of the Optical Society of America B, 36, 2395. https://doi.org/10.1364/josab.36.002395' bibtex: '@article{Hammer_Ebers_Förstner_2019, title={Oblique quasi-lossless excitation of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection coating}, volume={36}, DOI={10.1364/josab.36.002395}, journal={Journal of the Optical Society of America B}, author={Hammer, Manfred and Ebers, Lena and Förstner, Jens}, year={2019}, pages={2395} }' chicago: 'Hammer, Manfred, Lena Ebers, and Jens Förstner. “Oblique Quasi-Lossless Excitation of a Thin Silicon Slab Waveguide: A Guided-Wave Variant of an Anti-Reflection Coating.” Journal of the Optical Society of America B 36 (2019): 2395. https://doi.org/10.1364/josab.36.002395.' ieee: 'M. Hammer, L. Ebers, and J. Förstner, “Oblique quasi-lossless excitation of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection coating,” Journal of the Optical Society of America B, vol. 36, p. 2395, 2019.' mla: 'Hammer, Manfred, et al. “Oblique Quasi-Lossless Excitation of a Thin Silicon Slab Waveguide: A Guided-Wave Variant of an Anti-Reflection Coating.” Journal of the Optical Society of America B, vol. 36, 2019, p. 2395, doi:10.1364/josab.36.002395.' short: M. Hammer, L. Ebers, J. Förstner, Journal of the Optical Society of America B 36 (2019) 2395. date_created: 2019-08-09T07:07:45Z date_updated: 2022-01-06T06:51:24Z ddc: - '530' department: - _id: '61' - _id: '230' - _id: '429' doi: 10.1364/josab.36.002395 file: - access_level: open_access content_type: application/pdf creator: fossie date_created: 2019-08-09T07:09:04Z date_updated: 2019-08-09T07:09:04Z file_id: '12909' file_name: 2019-07 Hammer - JOSA B - Oblique Quasi-Lossless Excitation of a Thin Silicon Slab Waveguide (preprint).pdf file_size: 728533 relation: main_file file_date_updated: 2019-08-09T07:09:04Z has_accepted_license: '1' intvolume: ' 36' keyword: - tet_topic_waveguides language: - iso: eng oa: '1' page: '2395' project: - _id: '53' name: TRR 142 - _id: '56' name: TRR 142 - Project Area C - _id: '75' name: TRR 142 - Subproject C5 publication: Journal of the Optical Society of America B publication_identifier: issn: - 0740-3224 - 1520-8540 publication_status: published status: public title: 'Oblique quasi-lossless excitation of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection coating' type: journal_article user_id: '158' volume: 36 year: '2019' ... --- _id: '14990' abstract: - lang: eng text: We investigate optical microresonators consisting of either one or two coupled rectangular strips between upper and lower slab waveguides. The cavities are evanescently excited under oblique angles by thin-film guided, in-plane unguided waves supported by one of the slab waveguides. Beyond a specific incidence angle, losses are fully suppressed. The interaction between the guided mode of the cavity-strip and the incoming slab modes leads to resonant behavior for specific incidence angles and gaps. For a single cavity, at resonance, the input power is equally split among each of the four output ports, while for two cavities an add-drop filter can be realized that, at resonance, routes the incoming power completely to the forward drop waveguide via the cavity. For both applications, the strength of the interaction is controlled by the gaps between cavities and waveguides. author: - first_name: Lena full_name: Ebers, Lena id: '40428' last_name: Ebers - first_name: Manfred full_name: Hammer, Manfred id: '48077' last_name: Hammer orcid: 0000-0002-6331-9348 - first_name: Manuel B. full_name: Berkemeier, Manuel B. last_name: Berkemeier - first_name: Alexander full_name: Menzel, Alexander last_name: Menzel - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: 'Ebers L, Hammer M, Berkemeier MB, Menzel A, Förstner J. Coupled microstrip-cavities under oblique incidence of semi-guided waves: a lossless integrated optical add-drop filter. OSA Continuum. 2019;2:3288. doi:10.1364/osac.2.003288' apa: 'Ebers, L., Hammer, M., Berkemeier, M. B., Menzel, A., & Förstner, J. (2019). Coupled microstrip-cavities under oblique incidence of semi-guided waves: a lossless integrated optical add-drop filter. OSA Continuum, 2, 3288. https://doi.org/10.1364/osac.2.003288' bibtex: '@article{Ebers_Hammer_Berkemeier_Menzel_Förstner_2019, title={Coupled microstrip-cavities under oblique incidence of semi-guided waves: a lossless integrated optical add-drop filter}, volume={2}, DOI={10.1364/osac.2.003288}, journal={OSA Continuum}, author={Ebers, Lena and Hammer, Manfred and Berkemeier, Manuel B. and Menzel, Alexander and Förstner, Jens}, year={2019}, pages={3288} }' chicago: 'Ebers, Lena, Manfred Hammer, Manuel B. Berkemeier, Alexander Menzel, and Jens Förstner. “Coupled Microstrip-Cavities under Oblique Incidence of Semi-Guided Waves: A Lossless Integrated Optical Add-Drop Filter.” OSA Continuum 2 (2019): 3288. https://doi.org/10.1364/osac.2.003288.' ieee: 'L. Ebers, M. Hammer, M. B. Berkemeier, A. Menzel, and J. Förstner, “Coupled microstrip-cavities under oblique incidence of semi-guided waves: a lossless integrated optical add-drop filter,” OSA Continuum, vol. 2, p. 3288, 2019.' mla: 'Ebers, Lena, et al. “Coupled Microstrip-Cavities under Oblique Incidence of Semi-Guided Waves: A Lossless Integrated Optical Add-Drop Filter.” OSA Continuum, vol. 2, 2019, p. 3288, doi:10.1364/osac.2.003288.' short: L. Ebers, M. Hammer, M.B. Berkemeier, A. Menzel, J. Förstner, OSA Continuum 2 (2019) 3288. date_created: 2019-11-15T07:21:20Z date_updated: 2022-01-06T06:52:13Z ddc: - '530' department: - _id: '61' - _id: '230' doi: 10.1364/osac.2.003288 file: - access_level: open_access content_type: application/pdf creator: fossie date_created: 2019-11-15T15:33:26Z date_updated: 2019-11-15T15:33:26Z file_id: '15012' file_name: 2019-11-12 Ebers - Add Drop Filter - OSA continuum (official version).pdf file_size: 882779 relation: main_file file_date_updated: 2019-11-15T15:33:26Z has_accepted_license: '1' intvolume: ' 2' keyword: - tet_topic_waveguides language: - iso: eng main_file_link: - open_access: '1' url: https://www.osapublishing.org/osac/abstract.cfm?uri=osac-2-11-3288 oa: '1' page: '3288' project: - _id: '53' name: TRR 142 - _id: '56' name: TRR 142 - Project Area C - _id: '75' name: TRR 142 - Subproject C5 publication: OSA Continuum publication_identifier: issn: - 2578-7519 publication_status: published status: public title: 'Coupled microstrip-cavities under oblique incidence of semi-guided waves: a lossless integrated optical add-drop filter' type: journal_article user_id: '158' volume: 2 year: '2019' ... --- _id: '7720' abstract: - lang: ger text: 'Die Erfindung betrifft einen optischen Übergang zwischen zwei optischen Schichtwellenleitern. Dazu ist eine Anordnung vorgesehen aus einem ersten optischen Schichtwellenleiter (2) und einem zweiten optischen Schichtwellenleiter (3), wobei der erste optische Schichtwellenleiter (2) und der zweite optische Schichtwellenleiter (3) voneinander verschiedene über ihre jeweilige Länge konstante Dicken (d, r) aufweisen, der erste optische Schichtwellenleiter (2) mit dem zweiten optischen Schichtwellenleiter (3) mittels einer optischen Schichtwellenleiterstruktur (4) verbunden ist, die über ihre gesamte Länge (w) eine Dicke (h) aufweist, die zwischen der Dicke (d) des ersten optischen Schichtwellenleiters (2) und der Dicke (r) des zweiten optischen Schichtwellenleiters (3) liegt. Erfindungsgemäß ist die Dicke (h) der optischen Schichtwellenleiterstruktur (4) über die gesamte Länge (w) der optischen Schichtwellenleiterstruktur (4) konstant. Damit wird eine Möglichkeit für einen effizienten und mit geringen Verlusten behafteten Übergang zwischen zwei optischen Schichtwellenleitern mit unterschiedlicher Dicke bereitgestellt. ' - lang: eng text: The invention relates to an optical junction between two optical planar waveguides. For this purpose, an arrangement is provided of a first optical layer waveguide (2) and a second optical slab waveguide (3), wherein the first optical layer waveguide (2) and the second optical slab waveguide (3) different from each other is constant over their respective length of thicknesses (d, r ) which the first optical layer waveguide (2) with the second optical film waveguide (3) (by means of an optical layer waveguide structure 4) is connected, which (along their entire length w) has a thickness (h) which is between the thickness (d) the first optical waveguide layer (2) and the thickness (r) of the second optical waveguide layer (3). According to the invention, the thickness (h) of the optical layer waveguide structure (4) over the entire length (w) of the optical layer waveguide structure (4) constant. Thus, a possibility for an efficient and entailing low loss transition between two optical planar waveguides is provided with different thickness. application_date: 2018-04-05 application_number: '102018108110' author: - first_name: Manfred full_name: Hammer, Manfred id: '48077' last_name: Hammer orcid: 0000-0002-6331-9348 - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Lena full_name: Ebers, Lena id: '40428' last_name: Ebers citation: ama: Hammer M, Förstner J, Ebers L. Optical transition between two optical waveguides layer and method for transmitting light. Published online 2019. apa: Hammer, M., Förstner, J., & Ebers, L. (2019). Optical transition between two optical waveguides layer and method for transmitting light. bibtex: '@article{Hammer_Förstner_Ebers_2019, title={Optical transition between two optical waveguides layer and method for transmitting light}, author={Hammer, Manfred and Förstner, Jens and Ebers, Lena}, year={2019} }' chicago: Hammer, Manfred, Jens Förstner, and Lena Ebers. “Optical Transition between Two Optical Waveguides Layer and Method for Transmitting Light,” 2019. ieee: M. Hammer, J. Förstner, and L. Ebers, “Optical transition between two optical waveguides layer and method for transmitting light.” 2019. mla: Hammer, Manfred, et al. Optical Transition between Two Optical Waveguides Layer and Method for Transmitting Light. 2019. short: M. Hammer, J. Förstner, L. Ebers, (2019). date_created: 2019-02-15T10:25:59Z date_updated: 2022-04-27T07:35:46Z ddc: - '530' department: - _id: '61' - _id: '230' file: - access_level: closed content_type: application/pdf creator: fossie date_created: 2019-02-15T10:21:08Z date_updated: 2019-02-15T10:21:08Z file_id: '7721' file_name: 2019-01-31 DE-Patentschrift_5349.pdf file_size: 155604 relation: main_file success: 1 file_date_updated: 2019-02-15T10:21:08Z has_accepted_license: '1' ipc: G02B 6/26 ipn: DE102018108110B3 keyword: - tet_topic_waveguides main_file_link: - url: https://patents.google.com/patent/DE102018108110B3/en page: '9' project: - _id: '53' name: TRR 142 - _id: '56' name: TRR 142 - Project Area C - _id: '75' name: TRR 142 - Subproject C5 publication_date: 2019-01-31 status: public title: Optical transition between two optical waveguides layer and method for transmitting light type: patent user_id: '158' year: '2019' ... --- _id: '8634' abstract: - lang: eng text: "A rectangular dielectric strip at some distance above an optical slab waveguide is\r\nbeing considered, for evanescent excitation of the strip through the semi-guided waves supported\r\nby the slab, at specific oblique angles. The 2.5-D configuration shows resonant transmission\r\nproperties with respect to variations of the angle of incidence, or of the excitation frequency,\r\nrespectively. The strength of the interaction can be controlled by the gap between strip and slab.\r\nFor increasing distance, our simulations predict resonant states with unit extremal reflectance\r\nof an angular or spectral width that tends to zero, i.e. resonances with a Q-factor that tends\r\nto infinity, while the resonance position approaches the level of the guided mode of the strip.\r\nThis exceptionally simple system realizes what might be termed a “bound state coupled to the\r\ncontinuum”." article_type: original author: - first_name: Manfred full_name: Hammer, Manfred id: '48077' last_name: Hammer orcid: 0000-0002-6331-9348 - first_name: Lena full_name: Ebers, Lena id: '40428' last_name: Ebers - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: 'Hammer M, Ebers L, Förstner J. Oblique evanescent excitation of a dielectric strip: A model resonator with an open optical cavity of unlimited Q. Optics Express. 2019;27(7):8. doi:10.1364/OE.27.009313' apa: 'Hammer, M., Ebers, L., & Förstner, J. (2019). Oblique evanescent excitation of a dielectric strip: A model resonator with an open optical cavity of unlimited Q. Optics Express, 27(7), 8. https://doi.org/10.1364/OE.27.009313' bibtex: '@article{Hammer_Ebers_Förstner_2019, title={Oblique evanescent excitation of a dielectric strip: A model resonator with an open optical cavity of unlimited Q}, volume={27}, DOI={10.1364/OE.27.009313}, number={7}, journal={Optics Express}, author={Hammer, Manfred and Ebers, Lena and Förstner, Jens}, year={2019}, pages={8} }' chicago: 'Hammer, Manfred, Lena Ebers, and Jens Förstner. “Oblique Evanescent Excitation of a Dielectric Strip: A Model Resonator with an Open Optical Cavity of Unlimited Q.” Optics Express 27, no. 7 (2019): 8. https://doi.org/10.1364/OE.27.009313.' ieee: 'M. Hammer, L. Ebers, and J. Förstner, “Oblique evanescent excitation of a dielectric strip: A model resonator with an open optical cavity of unlimited Q,” Optics Express, vol. 27, no. 7, p. 8, 2019, doi: 10.1364/OE.27.009313.' mla: 'Hammer, Manfred, et al. “Oblique Evanescent Excitation of a Dielectric Strip: A Model Resonator with an Open Optical Cavity of Unlimited Q.” Optics Express, vol. 27, no. 7, 2019, p. 8, doi:10.1364/OE.27.009313.' short: M. Hammer, L. Ebers, J. Förstner, Optics Express 27 (2019) 8. date_created: 2019-03-26T10:39:00Z date_updated: 2023-01-03T10:34:29Z ddc: - '600' department: - _id: '61' doi: 10.1364/OE.27.009313 file: - access_level: closed content_type: application/pdf creator: nprante date_created: 2019-03-27T13:47:50Z date_updated: 2019-03-27T13:47:50Z file_id: '8714' file_name: oe-27-7-9313.pdf file_size: 2388537 relation: main_file success: 1 file_date_updated: 2019-03-27T13:47:50Z has_accepted_license: '1' intvolume: ' 27' issue: '7' keyword: - tet_topic_waveguides language: - iso: eng page: '8' publication: Optics Express status: public title: 'Oblique evanescent excitation of a dielectric strip: A model resonator with an open optical cavity of unlimited Q' type: journal_article user_id: '158' volume: 27 year: '2019' ... --- _id: '21462' abstract: - lang: eng text: This paper presents a new methodology by using a multiple coil array for energy transmission. The complex current strengths of the transmitting coil array are calculated by having the knowledge about of the mutual inductances and the symmetries of the transmitting coil array, so that its resulting magnetic field mainly penetrates only the receiving coil and is strongly attenuated outside. This method is used for an optimized wireless energy transmission but can also be implemented for other inductive applications. author: - first_name: Sven full_name: Lange, Sven id: '38240' last_name: Lange orcid: '0009-0007-9150-2266 ' - first_name: Maik-Julian full_name: Büker, Maik-Julian last_name: Büker - first_name: Denis full_name: Sievers, Denis last_name: Sievers - first_name: Christian full_name: Hedayat, Christian last_name: Hedayat - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Ulrich full_name: Hilleringmann, Ulrich last_name: Hilleringmann - first_name: Thomas full_name: Otto, Thomas last_name: Otto citation: ama: 'Lange S, Büker M-J, Sievers D, et al. Method of superposing a multiple driven magnetic field to minimize stray fields around the receiver for inductive wireless power transmission. In: Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems. VDE VERLAG GMBH; 2019:1-4.' apa: Lange, S., Büker, M.-J., Sievers, D., Hedayat, C., Förstner, J., Hilleringmann, U., & Otto, T. (2019). Method of superposing a multiple driven magnetic field to minimize stray fields around the receiver for inductive wireless power transmission. Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems, 1–4. bibtex: '@inproceedings{Lange_Büker_Sievers_Hedayat_Förstner_Hilleringmann_Otto_2019, place={Berlin · Offenbach}, title={Method of superposing a multiple driven magnetic field to minimize stray fields around the receiver for inductive wireless power transmission}, booktitle={Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems}, publisher={VDE VERLAG GMBH}, author={Lange, Sven and Büker, Maik-Julian and Sievers, Denis and Hedayat, Christian and Förstner, Jens and Hilleringmann, Ulrich and Otto, Thomas}, year={2019}, pages={1–4} }' chicago: 'Lange, Sven, Maik-Julian Büker, Denis Sievers, Christian Hedayat, Jens Förstner, Ulrich Hilleringmann, and Thomas Otto. “Method of Superposing a Multiple Driven Magnetic Field to Minimize Stray Fields around the Receiver for Inductive Wireless Power Transmission.” In Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems, 1–4. Berlin · Offenbach: VDE VERLAG GMBH, 2019.' ieee: S. Lange et al., “Method of superposing a multiple driven magnetic field to minimize stray fields around the receiver for inductive wireless power transmission,” in Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems, Barcelona, Spain , 2019, pp. 1–4. mla: Lange, Sven, et al. “Method of Superposing a Multiple Driven Magnetic Field to Minimize Stray Fields around the Receiver for Inductive Wireless Power Transmission.” Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems, VDE VERLAG GMBH, 2019, pp. 1–4. short: 'S. Lange, M.-J. Büker, D. Sievers, C. Hedayat, J. Förstner, U. Hilleringmann, T. Otto, in: Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems, VDE VERLAG GMBH, Berlin · Offenbach, 2019, pp. 1–4.' conference: end_date: 2019-04-11 location: 'Barcelona, Spain ' name: Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems start_date: 2019-04-10 date_created: 2021-03-12T09:46:55Z date_updated: 2024-11-30T19:32:36Z department: - _id: '59' - _id: '61' - _id: '485' keyword: - tet_enas language: - iso: eng main_file_link: - url: https://ieeexplore.ieee.org/document/8727831 page: 1-4 place: Berlin · Offenbach publication: Smart Systems Integration; 13th International Conference and Exhibition on Integration Issues of Miniaturized Systems publication_identifier: isbn: - 978-3-8007-4919-5 publication_status: published publisher: VDE VERLAG GMBH related_material: record: - id: '9265' relation: other status: deleted status: public title: Method of superposing a multiple driven magnetic field to minimize stray fields around the receiver for inductive wireless power transmission type: conference user_id: '158' year: '2019' ... --- _id: '3588' abstract: - lang: eng text: 'In scientific computing, unstructured meshes are a crucial foundation for the simulation of real-world physical phenomena. Compared to regular grids, they allow resembling the computational domain with a much higher accuracy, which in turn leads to more efficient computations.
There exists a wealth of supporting libraries and frameworks that aid programmers with the implementation of applications working on such grids, each built on top of existing parallelization technologies. However, many approaches require the programmer to introduce a different programming paradigm into their application or provide different variants of the code. SYCL is a new programming standard providing a remedy to this dilemma by building on standard C ++17 with its so-called single-source approach: Programmers write standard C ++ code and expose parallelism using C++17 keywords. The application is
then transformed into a concrete implementation by the SYCL implementation. By encapsulating the OpenCL ecosystem, different SYCL implementations enable not only the programming of CPUs but also of heterogeneous platforms such as GPUs or other devices. For the first time, this paper showcases a SYCL-
based solver for the nodal Discontinuous Galerkin method for Maxwell’s equations on unstructured meshes. We compare our solution to a previous C-based implementation with respect to programmability and performance on heterogeneous platforms.Proceedings of the 29th Annual IEEE International Conference on Application-Specific Systems, Architectures and Processors (ASAP). ; 2018:49-56. doi:10.1109/ASAP.2018.8445127' apa: 'Afzal, A., Schmitt, C., Alhaddad, S., Grynko, Y., Teich, J., Förstner, J., & Hannig, F. (2018). Solving Maxwell’s Equations with Modern C++ and SYCL: A Case Study. In Proceedings of the 29th Annual IEEE International Conference on Application-specific Systems, Architectures and Processors (ASAP) (pp. 49–56). https://doi.org/10.1109/ASAP.2018.8445127' bibtex: '@inproceedings{Afzal_Schmitt_Alhaddad_Grynko_Teich_Förstner_Hannig_2018, title={Solving Maxwell’s Equations with Modern C++ and SYCL: A Case Study}, DOI={10.1109/ASAP.2018.8445127}, booktitle={Proceedings of the 29th Annual IEEE International Conference on Application-specific Systems, Architectures and Processors (ASAP)}, author={Afzal, Ayesha and Schmitt, Christian and Alhaddad, Samer and Grynko, Yevgen and Teich, Jürgen and Förstner, Jens and Hannig, Frank}, year={2018}, pages={49–56} }' chicago: 'Afzal, Ayesha, Christian Schmitt, Samer Alhaddad, Yevgen Grynko, Jürgen Teich, Jens Förstner, and Frank Hannig. “Solving Maxwell’s Equations with Modern C++ and SYCL: A Case Study.” In Proceedings of the 29th Annual IEEE International Conference on Application-Specific Systems, Architectures and Processors (ASAP), 49–56, 2018. https://doi.org/10.1109/ASAP.2018.8445127.' ieee: 'A. Afzal et al., “Solving Maxwell’s Equations with Modern C++ and SYCL: A Case Study,” in Proceedings of the 29th Annual IEEE International Conference on Application-specific Systems, Architectures and Processors (ASAP), 2018, pp. 49–56.' mla: 'Afzal, Ayesha, et al. “Solving Maxwell’s Equations with Modern C++ and SYCL: A Case Study.” Proceedings of the 29th Annual IEEE International Conference on Application-Specific Systems, Architectures and Processors (ASAP), 2018, pp. 49–56, doi:10.1109/ASAP.2018.8445127.' short: 'A. Afzal, C. Schmitt, S. Alhaddad, Y. Grynko, J. Teich, J. Förstner, F. Hannig, in: Proceedings of the 29th Annual IEEE International Conference on Application-Specific Systems, Architectures and Processors (ASAP), 2018, pp. 49–56.' date_created: 2018-07-23T07:12:03Z date_updated: 2022-01-06T06:59:26Z ddc: - '004' department: - _id: '61' doi: 10.1109/ASAP.2018.8445127 file: - access_level: request content_type: application/pdf creator: fossie date_created: 2018-08-21T10:12:05Z date_updated: 2022-01-06T06:59:26Z embargo: 2019-09-03 embargo_to: open_access file_id: '3986' file_name: 2018-08 Afzal - ASAP Proceedings - Solving Maxwell equations with modern C++ and SYCL.pdf file_size: 252186 relation: main_file file_date_updated: 2022-01-06T06:59:26Z has_accepted_license: '1' keyword: - tet_topic_hpc language: - iso: eng page: 49-56 project: - _id: '33' grant_number: 01|H16005 name: HighPerMeshes - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Proceedings of the 29th Annual IEEE International Conference on Application-specific Systems, Architectures and Processors (ASAP) publication_identifier: isbn: - 978-1-5386-7479-6 status: public title: 'Solving Maxwell''s Equations with Modern C++ and SYCL: A Case Study' type: conference user_id: '158' year: '2018' ... --- _id: '3740' abstract: - lang: eng text: Oblique propagation of semi-guided waves across slab waveguide structures with bent corners is investigated. A critical angle can be defined beyond which all radiation losses are suppressed. Additionally an increase of the curvature radius of the bends also leads to low-loss configurations for incidence angles below that critical angle. A combination of two bent corner systems represents a step-like structure, behaving like a Fabry-Perot interferometer, with two partial reflectors separated by the vertical height between the horizontal slabs. We numerically analyse typical high-index-contrast Si/SiO2 structures for their reflectance and transmittance properties. When increasing the curvature radius the resonant effect becomes less relevant such that full transmittance is reached with less critical conditions on the vertical distance or the incidence angle. For practical interest 3-D problems are considered, where the structures are excited by the fundamental mode of a wide, shallow rib waveguide. High transmittance levels can be observed also for these 3-D configurations depending on the width of the rib. article_type: letter_note author: - first_name: Lena full_name: Ebers, Lena id: '40428' last_name: Ebers - first_name: Manfred full_name: Hammer, Manfred id: '48077' last_name: Hammer orcid: 0000-0002-6331-9348 - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: 'Ebers L, Hammer M, Förstner J. Oblique incidence of semi-guided planar waves on slab waveguide steps: effects of rounded edges. Optics Express. 2018;26(14):18621-18632. doi:10.1364/OE.26.018621' apa: 'Ebers, L., Hammer, M., & Förstner, J. (2018). Oblique incidence of semi-guided planar waves on slab waveguide steps: effects of rounded edges. Optics Express, 26(14), 18621–18632. https://doi.org/10.1364/OE.26.018621' bibtex: '@article{Ebers_Hammer_Förstner_2018, title={Oblique incidence of semi-guided planar waves on slab waveguide steps: effects of rounded edges}, volume={26}, DOI={10.1364/OE.26.018621}, number={14}, journal={Optics Express}, publisher={OSA Publishing}, author={Ebers, Lena and Hammer, Manfred and Förstner, Jens}, year={2018}, pages={18621–18632} }' chicago: 'Ebers, Lena, Manfred Hammer, and Jens Förstner. “Oblique Incidence of Semi-Guided Planar Waves on Slab Waveguide Steps: Effects of Rounded Edges.” Optics Express 26, no. 14 (2018): 18621–32. https://doi.org/10.1364/OE.26.018621.' ieee: 'L. Ebers, M. Hammer, and J. Förstner, “Oblique incidence of semi-guided planar waves on slab waveguide steps: effects of rounded edges,” Optics Express, vol. 26, no. 14, pp. 18621–18632, 2018.' mla: 'Ebers, Lena, et al. “Oblique Incidence of Semi-Guided Planar Waves on Slab Waveguide Steps: Effects of Rounded Edges.” Optics Express, vol. 26, no. 14, OSA Publishing, 2018, pp. 18621–32, doi:10.1364/OE.26.018621.' short: L. Ebers, M. Hammer, J. Förstner, Optics Express 26 (2018) 18621–18632. date_created: 2018-08-01T09:31:03Z date_updated: 2022-01-06T06:59:33Z ddc: - '620' department: - _id: '61' doi: 10.1364/OE.26.018621 file: - access_level: open_access content_type: application/pdf creator: hclaudia date_created: 2018-08-01T09:30:58Z date_updated: 2018-08-01T09:30:58Z file_id: '3741' file_name: 2018-07 Ebers_Hammer_Förstner_OpticsExpress_Oblique incidence of semi guided planar waves on slab waveguide steps_Rounded Edges.pdf file_size: 6193865 relation: main_file file_date_updated: 2018-08-01T09:30:58Z has_accepted_license: '1' intvolume: ' 26' issue: '14' keyword: - tet_topic_waveguide language: - iso: eng oa: '1' page: 18621-18632 project: - _id: '56' name: TRR 142 - Project Area C - _id: '53' name: TRR 142 - _id: '75' name: TRR 142 - Subproject C5 publication: Optics Express publication_status: published publisher: OSA Publishing status: public title: 'Oblique incidence of semi-guided planar waves on slab waveguide steps: effects of rounded edges' type: journal_article urn: '37409' user_id: '158' volume: 26 year: '2018' ...