Low-Filling-Factor Superconducting Single Photon Detector with High System Detection Efficiency

Autor:	Yamashita, Taro, Miki, Shigehito, Terai, Hirotaka, Wang, Zhen
Rok vydání:	2013
Předmět:	Condensed Matter - Superconductivity Physics - Optics Quantum Physics
Zdroj:	Optics Express Vol. 21, Issue 22, pp. 27177-27184 (2013)
Druh dokumentu:	Working Paper
DOI:	10.1364/OE.21.027177
Popis:	We designed, fabricated, and measured superconducting nanowire single-photon detectors (SSPDs) with low filling factor which achieve high system detection efficiency (SDE) and counting rate simultaneously. Numerical simulation reveals that high optical absorptance is possible in SSPDs even for low filing factor by tuning the device design. The SDEs of fabricated 18-50% filling factor SSPDs were measured systematically, and all SSPDs showed high SDEs of 61-80% and the lowest 18% filling factor SSPD achieved a high SDE of 69%. Comment: 9 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1305.2672 Zobrazit plný text záznamu View this record from Arxiv