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arXiv · 2308.15631

Low-noise single-photon counting superconducting nanowire detectors at infrared wavelengths up to 29 $\mu$m

Gregor G. Taylor·Alexander B. Walter·Boris Korzh·Bruce Bumble·Sahil R. Patel·Jason P. Allmaras·Andrew D. Beyer·Roger O'Brient·Matthew D. Shaw·Emma E. Wollman
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Abstract

We report on the extension of the spectral sensitivity of superconducting nanowire single-photon detectors to a wavelength of 29 $\mu$m. This represents the first demonstration of a time correlated single-photon counting detector at these long infrared wavelengths. We achieve saturated internal detection efficiency from 10 to 29 $\mu$m, whilst maintaining dark count rates below 0.1 counts per second. Extension of superconducting nanowire single-photon detectors to this spectral range provides low noise and high timing resolution photon counting detection, effectively providing a new class of single-photon sensitive detector for these wavelengths. These detectors are important for applications such as exoplanet spectroscopy, infrared astrophysics, physical chemistry, remote sensing and direct dark-matter detection.

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BibTeXRIS

Gregor G. Taylor, Alexander B. Walter, Boris Korzh, Bruce Bumble, Sahil R. Patel, Jason P. Allmaras, Andrew D. Beyer, Roger O'Brient, Matthew D. Shaw, Emma E. Wollman. 2023-08-29. Low-noise single-photon counting superconducting nanowire detectors at infrared wavelengths up to 29 $\mu$m. https://arxiv.org/abs/2308.15631

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