TY  - CONF
AU  - Zolotov, P.
AU  - Divochiy, A.
AU  - Vakhtomin, Y.
AU  - Moshkova, M.
AU  - Morozov, P.
AU  - Seleznev, V.
AU  - Smirnov, K.
PY  - 2018
DA  - 2018//
TI  - Photon-number-resolving SSPDs with system detection efficiency over 50% at telecom range
BT  - Proc. AIP Conf.
SP  - 020019
VL  - 1936
IS  - 1
KW  - NbN PNR SSPD
KW  - SNSPD
AB  - We used technology of making high-efficiency superconducting single-photon detectors as a basis for improvement of photon-number-resolving devices. By adding optical cavity and using an improved NbN superconducting film, we enhanced previously reported system detection efficiency at telecom range for such detectors. Our results show that implementation of optical cavity helps to develop four-section device with quantum efficiency over 50% at 1.55 µm. Performed experimental studies of detecting multi-photon optical pulses showed irregularities over defining multi-photon through single-photon quantum efficiency.
UR  - https://aip.scitation.org/doi/abs/10.1063/1.5025457
UR  - https://doi.org/10.1063/1.5025457
DO  - 10.1063/1.5025457
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1231), last updated on Mon, 03 May 2021 23:27:34 -0500
ID  - Zolotov_etal2018
ER  -