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Proceedings Paper

Germanium quad-cell for single-photon detection in the near infrared
Author(s): Andrea L. Lacaita; Piergiorgio G. Lovati; Sergio D. Cova; Franco Zappa; Dragan P. Grubisic
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Paper Abstract

We report the first results obtained with a germanium quad-cell sensor operated in Geiger- mode regime. After a quantitative characterization of the single pixel, both in counting and in timing applications, we quantitatively assess the intensity of the optical coupling among the detectors of the cell due to secondary photon emission from hot carriers. This effect, intrinsically related to Geiger-mode operation, has been overcome by sequentially driving the pixels of the cell. A preliminary test demonstrates the tracking capabilites of the sensor. Since the single pixel can detect the arrival time of the photon with a precision better than 100ps FWHM arrays of such devices could be also employed in wavelength and timing resolved luminescence measurements in the near-infrared.

Paper Details

Date Published: 26 September 1995
PDF: 10 pages
Proc. SPIE 2550, Photodetectors and Power Meters II, (26 September 1995); doi: 10.1117/12.221408
Show Author Affiliations
Andrea L. Lacaita, Politecnico di Milano (Italy)
Piergiorgio G. Lovati, Politecnico di Milano (Italy)
Sergio D. Cova, Politecnico di Milano (Italy)
Franco Zappa, Politecnico di Milano (Italy)
Dragan P. Grubisic, EG&G Optoelectronics Judson (United States)

Published in SPIE Proceedings Vol. 2550:
Photodetectors and Power Meters II
Kathleen Muray; Kenneth J. Kaufmann, Editor(s)

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