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Proceedings Paper

On the measurement of intensity correlations from laboratory and astronomical sources with SPADs and SNSPDs
Author(s): Edward Schroeder; Philip Mauskopf; Genady Pilyavsky; Adrian Sinclair; Nathan Smith; Sean Bryan; Hamdi Mani; Dmitry Morozov; Karl Berggren; Di Zhu; Konstantin Smirnov; Yuriy Vakhtomin
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Paper Abstract

We describe the performance of detector modules containing silicon single photon avalanche photodiodes (SPADs) and superconducting nanowire single photon detectors (SNSPDs) to be used for intensity interferometry. The SPADs are mounted in fiber-coupled and free-space coupled packages. The SNSPDs are mounted in a small liquid helium cryostat coupled to single mode fiber optic cables which pass through a hermetic feed-through. The detectors are read out with microwave amplifiers and FPGA-based coincidence electronics. We present progress on measurements of intensity correlations from incoherent sources including gas-discharge lamps and stars with these detectors. From the measured laboratory performance of the correlation system, we estimate the sensitivity to intensity correlations from stars using commercial telescopes and larger existing research telescopes.

Paper Details

Date Published: 4 August 2016
PDF: 13 pages
Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 99070P (4 August 2016); doi: 10.1117/12.2233536
Show Author Affiliations
Edward Schroeder, Arizona State Univ. (United States)
Philip Mauskopf, Arizona State Univ. (United States)
Genady Pilyavsky, Arizona State Univ. (United States)
Adrian Sinclair, Arizona State Univ. (United States)
Nathan Smith, Arizona State Univ. (United States)
Sean Bryan, Arizona State Univ. (United States)
Hamdi Mani, Arizona State Univ. (United States)
Dmitry Morozov, Cardiff Univ. (United Kingdom)
Karl Berggren, Massachusetts Institute of Technology (United States)
Di Zhu, Massachusetts Institute of Technology (United States)
Konstantin Smirnov, Superconducting Nanotechnology (Russian Federation)
Yuriy Vakhtomin, Superconducting Nanotechnology (Russian Federation)


Published in SPIE Proceedings Vol. 9907:
Optical and Infrared Interferometry and Imaging V
Fabien Malbet; Michelle J. Creech-Eakman; Peter G. Tuthill, Editor(s)

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