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, and Emma E. Wollman
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Low-noise single-photon counting superconducting nanowire detectors at infrared wavelengths up to 29 µm
We report on the extension of the spectral sensitivity of superconducting nanowire single-photon detectors to a wavelength of 29 µm. To our knowledge, this represents the first demonstration of a single-photon counting detector at these long infrared wavelengths. We achieve saturated internal detection efficiency from 10 to 29 µm, while 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 detectors for these wavelengths. These detectors are important for applications such as exoplanet spectroscopy, infrared astrophysics, physical chemistry, remote sensing, and direct dark-matter detection.
期刊介绍:
Optica is an open access, online-only journal published monthly by Optica Publishing Group. It is dedicated to the rapid dissemination of high-impact peer-reviewed research in the field of optics and photonics. The journal provides a forum for theoretical or experimental, fundamental or applied research to be swiftly accessed by the international community. Optica is abstracted and indexed in Chemical Abstracts Service, Current Contents/Physical, Chemical & Earth Sciences, and Science Citation Index Expanded.