Improvement of infrared single-photon detectors absorptance by integrated plasmonic structures
Plasmonic structures open novel avenues in photodetector development. Optimized illumination configurations are reported to improve p-polarized light absorptance in superconducting-nanowire single-photon detectors (SNSPDs) comprising short- and long-periodic niobium-nitride (NbN) stripe-patterns. In...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | en_US |
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Nature Publishing Group
2014
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| Online Access: | http://hdl.handle.net/1721.1/85968 https://orcid.org/0000-0001-7453-9031 |
| _version_ | 1826192449718976512 |
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| author | Najafi, Faraz Berggren, Karl K. Csete, Maria Sipos, Aron Szalai, Aniko Szabo, Gabor |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Najafi, Faraz Berggren, Karl K. Csete, Maria Sipos, Aron Szalai, Aniko Szabo, Gabor |
| author_sort | Najafi, Faraz |
| collection | MIT |
| description | Plasmonic structures open novel avenues in photodetector development. Optimized illumination configurations are reported to improve p-polarized light absorptance in superconducting-nanowire single-photon detectors (SNSPDs) comprising short- and long-periodic niobium-nitride (NbN) stripe-patterns. In OC-SNSPDs consisting of ~quarter-wavelength dielectric layer closed by a gold reflector the highest absorptance is attainable at perpendicular incidence onto NbN patterns in P-orientation due to E-field concentration at the bottom of nano-cavities. In NCAI-SNSPDs integrated with nano-cavity-arrays consisting of vertical and horizontal gold segments off-axis illumination in S-orientation results in polar-angle-independent perfect absorptance via collective resonances in short-periodic design, while in long-periodic NCAI-SNSPDs grating-coupled surface waves promote EM-field transportation to the NbN stripes and result in local absorptance maxima. In NCDAI-SNSPDs integrated with nano-cavity-deflector-array consisting of longer vertical gold segments large absorptance maxima appear in 3p-periodic designs due to E-field enhancement via grating-coupled surface waves synchronized with the NbN stripes in S-orientation, which enable to compensate fill-factor-related retrogression. |
| first_indexed | 2024-09-23T09:13:45Z |
| format | Article |
| id | mit-1721.1/85968 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:13:45Z |
| publishDate | 2014 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | mit-1721.1/859682022-09-30T14:05:44Z Improvement of infrared single-photon detectors absorptance by integrated plasmonic structures Najafi, Faraz Berggren, Karl K. Csete, Maria Sipos, Aron Szalai, Aniko Szabo, Gabor Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Research Laboratory of Electronics Csete, Maria Najafi, Faraz Berggren, Karl K. Plasmonic structures open novel avenues in photodetector development. Optimized illumination configurations are reported to improve p-polarized light absorptance in superconducting-nanowire single-photon detectors (SNSPDs) comprising short- and long-periodic niobium-nitride (NbN) stripe-patterns. In OC-SNSPDs consisting of ~quarter-wavelength dielectric layer closed by a gold reflector the highest absorptance is attainable at perpendicular incidence onto NbN patterns in P-orientation due to E-field concentration at the bottom of nano-cavities. In NCAI-SNSPDs integrated with nano-cavity-arrays consisting of vertical and horizontal gold segments off-axis illumination in S-orientation results in polar-angle-independent perfect absorptance via collective resonances in short-periodic design, while in long-periodic NCAI-SNSPDs grating-coupled surface waves promote EM-field transportation to the NbN stripes and result in local absorptance maxima. In NCDAI-SNSPDs integrated with nano-cavity-deflector-array consisting of longer vertical gold segments large absorptance maxima appear in 3p-periodic designs due to E-field enhancement via grating-coupled surface waves synchronized with the NbN stripes in S-orientation, which enable to compensate fill-factor-related retrogression. United States. Dept. of Energy (Frontier Research Centers) 2014-03-28T18:49:33Z 2014-03-28T18:49:33Z 2013-08 2012-12 Article http://purl.org/eprint/type/JournalArticle 2045-2322 http://hdl.handle.net/1721.1/85968 Csete, Mária, Áron Sipos, Anikó Szalai, Faraz Najafi, Gábor Szabó, and Karl K. Berggren. “Improvement of Infrared Single-Photon Detectors Absorptance by Integrated Plasmonic Structures.” Sci. Rep. 3 (August 12, 2013). https://orcid.org/0000-0001-7453-9031 en_US http://dx.doi.org/10.1038/srep02406 Scientific Reports Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Nature Publishing Group Scientific Reports |
| spellingShingle | Najafi, Faraz Berggren, Karl K. Csete, Maria Sipos, Aron Szalai, Aniko Szabo, Gabor Improvement of infrared single-photon detectors absorptance by integrated plasmonic structures |
| title | Improvement of infrared single-photon detectors absorptance by integrated plasmonic structures |
| title_full | Improvement of infrared single-photon detectors absorptance by integrated plasmonic structures |
| title_fullStr | Improvement of infrared single-photon detectors absorptance by integrated plasmonic structures |
| title_full_unstemmed | Improvement of infrared single-photon detectors absorptance by integrated plasmonic structures |
| title_short | Improvement of infrared single-photon detectors absorptance by integrated plasmonic structures |
| title_sort | improvement of infrared single photon detectors absorptance by integrated plasmonic structures |
| url | http://hdl.handle.net/1721.1/85968 https://orcid.org/0000-0001-7453-9031 |
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