High-efficiency single-photon detectors

Radhika Rangarajan; Joseph B. Altepeter; Evan R. Jeffrey; Micah J. A. Stoutimore; Nicholas A. Peters; Onur Hosten; Paul G. Kwiat

doi:10.1117/12.686117

25 October 2006 High-efficiency single-photon detectors

Radhika Rangarajan, Joseph B. Altepeter, Evan R. Jeffrey, Micah J. A. Stoutimore, Nicholas A. Peters, Onur Hosten, Paul G. Kwiat

Author Affiliations +

Proceedings Volume 6372, Advanced Photon Counting Techniques; 63720T (2006) https://doi.org/10.1117/12.686117
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

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.

Citation Download Citation

Radhika Rangarajan, Joseph B. Altepeter, Evan R. Jeffrey, Micah J. A. Stoutimore, Nicholas A. Peters, Onur Hosten, and Paul G. Kwiat "High-efficiency single-photon detectors", Proc. SPIE 6372, Advanced Photon Counting Techniques, 63720T (25 October 2006); https://doi.org/10.1117/12.686117

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