Recent advances in superconducting nanowire single-photon detector technology for exoplanet transit spectroscopy in the mid-infrared
نویسندگان
چکیده
The Origins Space Telescope mission concept includes an exoplanet transit spectrometer that requires detector arrays with ultrahigh pixel-to-pixel stability. Superconducting nanowire single-photon detectors, or SNSPDs, have the potential to meet these stringent stability requirements due their digital-like output. Traditionally used for applications at near-IR telecom wavelengths, SNSPDs demonstrated near-unity detection efficiencies, ultralow dark-count rates, and high dynamic ranges. Until recently, however, SNSPD operation mid-infrared (mid-IR) wavelengths of interest had not been demonstrated, formats were limited small active areas. Recent advances in fabrication techniques pushed sensitivity beyond 7 ?m enabled millimeter-scale areas kilopixel arrays. We report here on this progress outlook toward developing ultrastable superconducting detectors mid-IR astronomy applications.
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ژورنال
عنوان ژورنال: Journal of Astronomical Telescopes, Instruments, and Systems
سال: 2021
ISSN: ['2329-4221', '2329-4124']
DOI: https://doi.org/10.1117/1.jatis.7.1.011004