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Performance of photon-number resolving transition-edge sensors with an integrated 1550 nm resonant cavity

Published

Author(s)

Danna Rosenberg, Adriana Lita, Aaron J. Miller, Sae Woo Nam, Robert E. Schwall

Abstract

Many quantum-information applications require high-efficiency, low-noise, single-photon-sensitive detectors that operate at visible and near-infrared wavelengths. The tunable superconducting critical temperature and anomalously low electron-phonon coupling of tungsten make it a suitable material for the fabrication of transition-edge sensors (TESs) that meet these requirements. The quantum efficiency of a tungsten TES detector, intrinsically around 15% at 1550 nm, can be increased by placing the tungsten detector in a resonant cavity, but the performance of a device embedded in a cavity has not been tested previously. We demonstrate that the presence of the cavity does not adversely affect device performance, and we report on the device characteristics of our new generation of tungsten TESs with greater than 80% quantum efficiency at 1550 nm.
Citation
IEEE Transactions on Applied Superconductivity
Volume
15
Issue
2

Citation

Rosenberg, D. , Lita, A. , Miller, A. , Nam, S. and Schwall, R. (2005), Performance of photon-number resolving transition-edge sensors with an integrated 1550 nm resonant cavity, IEEE Transactions on Applied Superconductivity, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=31826 (Accessed February 22, 2024)
Created May 31, 2005, Updated October 12, 2021