High-efficiency superconducting nanowire single-photon detectors fabricated from MoSi thin-films

Published

April 10, 2015

Author(s)

Varun B. Verma, Boris Korzh, Felix Bussieres, Robert D. Horansky, Shellee D. Dyer, Adriana E. Lita, Igor Vayshenker, Francesco Marsili, Matthew D. Shaw, Hugo Zbinden, Richard P. Mirin, Sae Woo Nam

Abstract

We demonstrate high-efficiency superconducting nanowire single-photon detectors (SNSPDs) fabricated from MoSi thin-films. We measure a maximum system detection efficiency (SDE) of 87 ± 0.5 % at 1542 nm at a temperature of 0.7 K, with a jitter of 76 ps, maximum count rate approaching 10 MHz, and polarization dependence as low as 3.4 ± 0.7 % The SDE curves show saturation of the internal efficiency similar to WSi-based SNSPDs at temperatures as high as 2.3 K. We show that at similar cryogenic temperatures, MoSi SNSPDs achieve efficiencies comparable to WSi-based SNSPDs with nearly a factor of two reduction in jitter.

Proceedings Title

CLEO 2011, the Conference on Lasers and Electro-Optics

Conference Dates

May 1-6, 2011

Conference Location

Baltimore, MD

Pub Type

Conferences

Download Paper

https://doi.org/10.1364/OE.23.033792

Keywords

detector, single photon detector, superconducting nanowire single photon detector, superconducting single photon detector

Citation

Verma, V. , Korzh, B. , Bussieres, F. , Horansky, R. , Dyer, S. , Lita, A. , Vayshenker, I. , Marsili, F. , Shaw, M. , Zbinden, H. , Mirin, R. and Nam, S. (2015), High-efficiency superconducting nanowire single-photon detectors fabricated from MoSi thin-films, CLEO 2011, the Conference on Lasers and Electro-Optics, Baltimore, MD, [online], https://doi.org/10.1364/OE.23.033792 (Accessed April 26, 2025)