TY  - JOUR
AU  - Verevkin, A.
AU  - Pearlman, A.
AU  - Slysz, W.
AU  - Zhang, J.
AU  - Currie, M.
AU  - Korneev, A.
AU  - Chulkova, G.
AU  - Okunev, O.
AU  - Kouminov, P.
AU  - Smirnov, K.
AU  - Voronov, B.
AU  - Gol'tsman, G. N.
AU  - Sobolewski, R.
PY  - 2004
DA  - 2004//
TI  - Ultrafast superconducting single-photon detectors for near-infrared-wavelength quantum communications
T2  - J. Modern Opt.
JO  - J. Modern Opt.
SP  - 1447
EP  - 1458
VL  - 51
IS  - 9-10
KW  - NbN SSPD
KW  - SNSPD
AB  - The paper reports progress on the design and development of niobium-nitride, superconducting single-photon detectors (SSPDs) for ultrafast counting of near-infrared photons for secure quantum communications. The SSPDs operate in the quantum detection mode, based on photon-induced hotspot formation and subsequent appearance of a transient resistive barrier across an ultrathin and submicron-width superconducting stripe. The devices are fabricated from 3.5 nm thick NbN films and kept at cryogenic (liquid helium) temperatures inside a cryostat. The detector experimental quantum efficiency in the photon-counting mode reaches above 20% in the visible radiation range and up to 10% at the 1.3–1.55 μn infrared range. The dark counts are below 0.01 per second. The measured real-time counting rate is above 2 GHz and is limited by readout electronics (the intrinsic response time is below 30 ps). The SSPD jitter is below 18 ps, and the best-measured value of the noise-equivalent power (NEP) is 2 × 10−18 W/Hz1/2. at 1.3 μm. In terms of photon-counting efficiency and speed, these NbN SSPDs significantly outperform semiconductor avalanche photodiodes and photomultipliers.
SN  - 0950-0340
UR  - https://www.tandfonline.com/doi/full/10.1080/09500340408235284
UR  - https://doi.org/10.1080/09500340408235284
DO  - 10.1080/09500340408235284
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1488), last updated on Tue, 18 May 2021 12:01:54 -0500
ID  - Verevkin_etal2004
ER  -