Single-photon detection in the mid-infrared up to 10 micron wavelength using tungsten silicide superconducting nanowire detectors

Published

September 14, 2021

Author(s)

Varun Verma, Adriana Lita, Yao Zhai, Heli C. Vora, Richard Mirin, Sae Woo Nam, Boris Korzh, Alex Walter, Ryan Briggs, Marco Colangelo, Emma Wollman, Andrew Beyer, Jason Allmaras, D. Zhu, Ekkehart Schmidt, A. G. Kozorezov, Matthew Shaw

Abstract

We developed superconducting nanowire single-photon detectors (SNSPDs) based on tungsten silicide (WSi) that show saturated internal detection efficiency up to a wavelength of 10 um. These detectors are promising for applications in the mid-infrared requiring ultra-high gain stability, low dark counts, and high efficiency such as chemical sensing, LIDAR, dark matter searches and exoplanet spectroscopy.

Citation

Applied Physics Letters Photonics

Pub Type

Journals

Download Paper

https://doi.org/10.1063/5.0048049

Local Download

Keywords

nanowire, superconductor, detector, single-photon

Citation

Verma, V. , Lita, A. , Zhai, Y. , Vora, H. , Mirin, R. , Nam, S. , Korzh, B. , Walter, A. , Briggs, R. , Colangelo, M. , Wollman, E. , Beyer, A. , Allmaras, J. , Zhu, D. , Schmidt, E. , Kozorezov, A. and Shaw, M. (2021), Single-photon detection in the mid-infrared up to 10 micron wavelength using tungsten silicide superconducting nanowire detectors, Applied Physics Letters Photonics, [online], https://doi.org/10.1063/5.0048049, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=931700 (Accessed October 14, 2025)