High absorption efficiency and polarization-insensitivity in superconducting-nanowire single-photon detectors
| Autor: | Val Zwiller, Luca Redaelli, Anna Mukhtarova, Sander N. Dorenbos, Gabriele Bulgarini, Jean-Michel Gérard, Sergiy M. Dobrovolskiy, Eva Monroy |
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| Přispěvatelé: | Nanophysique et Semiconducteurs (NPSC), PHotonique, ELectronique et Ingénierie QuantiqueS (PHELIQS), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut Nanosciences et Cryogénie (INAC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Kavli Institute of Nanosciences [Delft] (KI-NANO), Delft University of Technology (TU Delft) |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Nanowire Physics::Optics Superconducting nanowire single-photon detector 02 engineering and technology Dielectric 01 natural sciences law.invention Condensed Matter::Materials Science Optics [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] law 0103 physical sciences [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics 010306 general physics Absorption (electromagnetic radiation) [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] business.industry Detector 021001 nanoscience & nanotechnology Polarization (waves) Optical cavity [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic Optoelectronics 0210 nano-technology business Waveguide |
| Zdroj: | SPIE OPTO SPIE OPTO, Jan 2017, San Francisco, United States. pp.101112K, ⟨10.1117/12.2252332⟩ |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.2252332 |
| Popis: | International audience; The performance of superconducting-nanowire single-photon detectors depends on the efficiency of light absorption in the ultrathin (3-8 nm) superconducting nanowire. In this work, we will discuss two approaches to boost light absorption: coupling the nanowire to the evanescent field propagating in a waveguide and enclosing the nanowire in an optical cavity. The latter method is the most widely used, but it is intrinsically very sensitive to the polarization of light. To overcome this issue, we propose some innovative cavity designs which make use of high-index (n >2) dielectrics. With this technique, highly-efficient polarization-insensitive devices can be easily implemented. |
| Databáze: | OpenAIRE |
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