Single-photon detection in the mid-infrared up to 10 <i>μ</i>m wavelength using tungsten silicide superconducting nanowire detectors
Varun B. Verma, Boris Korzh, Alexander Walter, Adriana Lita, Ryan M. Briggs, Marco Colangelo, Yao Zhai, Emma E. Wollman, Andrew D. Beyer, Jason P. Allmaras, Heli Vora, Di Zhu, Ekkehart Schmidt, A. G. Kozorezov, Karl K. Berggren, Richard P. Mirin, Sae Woo Nam, Matthew D. Shaw
Abstract
We developed superconducting nanowire single-photon detectors based on tungsten silicide, which show saturated internal detection efficiency up to a wavelength of 10 μm. These detectors are promising for applications in the mid-infrared requiring sub-nanosecond timing, ultra-high gain stability, low dark counts, and high efficiency, such as chemical sensing, LIDAR, dark matter searches, and exoplanet spectroscopy.
Topics & Concepts
NanowireMaterials scienceSilicideTungstenDetectorInfraredOptoelectronicsNanosecondPhotodetectorWavelengthOpticsPhysicsLaserSiliconMetallurgyPhotonic and Optical DevicesAdvanced Semiconductor Detectors and MaterialsSpectroscopy and Laser Applications