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Proceedings Paper

Avalanche photodiodes for near-infrared photon counting
Author(s): Sergio D. Cova; Andrea L. Lacaita; Franco Zappa; Piergiorgio G. Lovati
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Paper Abstract

We report the photon-counting and timing performance of various Single-Photon Avalanche Diodes (SPADs) employed to detect single photons in the near-infrared wavelength range. Suitable Silicon structures achieve high quantum efficiency (70% at 800 nm) and can work up to 1.1 micrometers . Ge SPADs and InGaAs devices are sensitive up to 1.4 micrometers and 1.6 micrometers , respectively, wit ha few percent-quantum efficiencies. We compare these results with the performance of state-of-the-art photomultiplier tubes with extended near-infrared sensitivity. We also report the first results obtained with a germanium quad-cell sensor, which may be considered the first step towards the development of SPAD arrays.

Paper Details

Date Published: 8 May 1995
PDF: 11 pages
Proc. SPIE 2388, Advances in Fluorescence Sensing Technology II, (8 May 1995); doi: 10.1117/12.208529
Show Author Affiliations
Sergio D. Cova, Politecnico di Milano (Italy)
Andrea L. Lacaita, Politecnico di Milano (Italy)
Franco Zappa, Politecnico di Milano (Italy)
Piergiorgio G. Lovati, Politecnico di Milano (Italy)

Published in SPIE Proceedings Vol. 2388:
Advances in Fluorescence Sensing Technology II
Joseph R. Lakowicz, Editor(s)

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