TY  - JOUR
AU  - Korneev, A.
AU  - Matvienko, V.
AU  - Minaeva, O.
AU  - Milostnaya, I.
AU  - Rubtsova, I.
AU  - Chulkova, G.
AU  - Smirnov, K.
AU  - Voronov, V.
AU  - Gol’tsman, G.
AU  - Slysz, W.
AU  - Pearlman, A.
AU  - Verevkin, A.
AU  - Sobolewski, R.
PY  - 2005
DA  - 2005//
TI  - Quantum efficiency and noise equivalent power of nanostructured, NbN, single-photon detectors in the wavelength range from visible to infrared
T2  - IEEE Trans. Appl. Supercond.
JO  - IEEE Trans. Appl. Supercond.
SP  - 571
EP  - 574
VL  - 15
IS  - 2
KW  - NbN SSPD
KW  - SNSPD
KW  - QE
KW  - NEP
AB  - We present our studies on the quantum efficiency (QE) and the noise equivalent power (NEP) of the latest-generation, nanostructured, superconducting, single-photon detectors (SSPDs) in the wavelength range from 0.5 to 5.6 /spl mu/m, operated at temperatures in the 2.0- to 4.2-K range. Our detectors are designed as 4-nm-thick and 100-nm-wide NbN meander-shaped stripes, patterned by electron-beam lithography and cover a 10/spl times/10-/spl mu/m/sup 2/ active area. The best-achieved QE at 2.0 K for 1.55-/spl mu/m photons is 17%, and QE for 1.3-/spl mu/m infrared photons reaches its saturation value of /spl sim/30%. The SSPD NEP at 2.0 K is as low as 5/spl times/10/sup -21/ W/Hz/sup -1/2/. Our nanostructured SSPDs, operated at 2.0 K, significantly outperform their semiconducting counterparts, and, together with their GHz counting rate and picosecond timing jitter, they are devices-of-choice for practical quantum key distribution systems and free-space (even interplanetary) quantum optical communications.
SN  - 1558-2515
UR  - https://doi.org/10.1109/TASC.2005.849923
DO  - 10.1109/TASC.2005.849923
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1467), last updated on Mon, 17 May 2021 16:59:03 -0500
ID  - Korneev_etal2005
ER  -