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Proceedings Paper

High-efficiency single-photon detectors
Author(s): Radhika Rangarajan; Joseph B. Altepeter; Evan R. Jeffrey; Micah J. A. Stoutimore; Nicholas A. Peters; Onur Hosten; Paul G. Kwiat
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Paper Abstract

Visible light photon counters (VLPCs) and solid-state photomultipliers (SSPMs) are high-efficiency single-photon detectors which have multi-photon counting capability. While both the VLPCs and the SSPMs have inferred internal quantum efficiencies above 93%, the actual measured values for both the detectors were in fact limited to less than 88%, attributed to in-coupling losses. We are currently improving this overall detection efficiency via a) custom anti-reflection coating the detectors and the in-coupling fibers, b) implementing a novel cryogenic design to reduce transmission losses and, c) using low-noise electronics to obtain a better signal-to-noise ratio.

Paper Details

Date Published: 25 October 2006
PDF: 5 pages
Proc. SPIE 6372, Advanced Photon Counting Techniques, 63720T (25 October 2006); doi: 10.1117/12.686117
Show Author Affiliations
Radhika Rangarajan, Univ. of Illinois at Urbana-Champaign (United States)
Joseph B. Altepeter, Univ. of Illinois at Urbana-Champaign (United States)
Evan R. Jeffrey, Univ. of Illinois at Urbana-Champaign (United States)
Micah J. A. Stoutimore, Univ. of Illinois at Urbana-Champaign (United States)
Nicholas A. Peters, Univ. of Illinois at Urbana-Champaign (United States)
Onur Hosten, Univ. of Illinois at Urbana-Champaign (United States)
Paul G. Kwiat, Univ. of Illinois at Urbana-Champaign (United States)


Published in SPIE Proceedings Vol. 6372:
Advanced Photon Counting Techniques
Wolfgang Becker, Editor(s)

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