Germanium quad-cell for single-photon detection in the near infrared

Andrea L. Lacaita; Piergiorgio G. Lovati; Sergio D. Cova; Franco Zappa; Dragan P. Grubisic

doi:10.1117/12.221408

26 September 1995 Germanium quad-cell for single-photon detection in the near infrared

Andrea L. Lacaita, Piergiorgio G. Lovati, Sergio D. Cova, Franco Zappa, Dragan P. Grubisic

Proceedings Volume 2550, Photodetectors and Power Meters II; (1995) https://doi.org/10.1117/12.221408
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

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.

Citation Download Citation

Andrea L. Lacaita, Piergiorgio G. Lovati, Sergio D. Cova, Franco Zappa, and Dragan P. Grubisic "Germanium quad-cell for single-photon detection in the near infrared", Proc. SPIE 2550, Photodetectors and Power Meters II, (26 September 1995); https://doi.org/10.1117/12.221408

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