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Monolithic silicon matrix detector with 50µm photon counting pixels

Authors :
Alessandro Restelli
Piera Maccagnani
Massimo Ghioni
Sergio Cova
Ivan Rech
Source :
Journal of modern optics, 54 (2007): 213–223., info:cnr-pdr/source/autori:A. Restelli, I. Rech, P. Maccagnani, M. Ghioni, S. Cova/titolo:Monolithic silicon matrix detector with 50µm photon counting pixels/doi:/rivista:Journal of modern optics (Print)/anno:2007/pagina_da:213/pagina_a:223/intervallo_pagine:213–223/volume:54, 54 (2007): 213–223. doi:10.1080/09500340600790121, info:cnr-pdr/source/autori:Restelli, A; Rech, I; Maccagnani, P; Ghioni, M; Cova, S/titolo:Monolithic silicon matrix detector with 50 microns photon counting pixels/doi:10.1080%2F09500340600790121/rivista:Journal of modern optics (Print)/anno:2007/pagina_da:213/pagina_a:223/intervallo_pagine:213–223/volume:54
Publication Year :
2007
Publisher :
Taylor & Francis, London , Regno Unito, 2007.

Abstract

A 48-element monolithic matrix detector, designed for parallel fluorescence detection, has been fabricated in silicon and tested. The pixels are single photon avalanche diodes (SPADs) with 50 pm diameter, ordered in a 6 x 8 array with 240 mu m pitch. The photon detection efficiency is remarkably uniform over the array: it has a peak of 48% at 530 nm and it is higher than 30% over all the visible range. Low dark counting rate (DCR) is obtained in operation at moderately low temperature (-15 degrees C with thermoelectric cooling): the individual pixel DCR is 60cs(-1) for about 40% of the elements and it is below 5700cs(-1) in the rest of the array. It was verified that the afterpulsing probability is below 1% and that the optical crosstalk probability between elements is lower than 0.2%. Based on this matrix detector, we have developed a versatile and compact (20cm x 8cm x 4cm) photon counting module that can be easily interfaced to a PC via USB link.

Details

Database :
OpenAIRE
Journal :
Journal of modern optics, 54 (2007): 213–223., info:cnr-pdr/source/autori:A. Restelli, I. Rech, P. Maccagnani, M. Ghioni, S. Cova/titolo:Monolithic silicon matrix detector with 50µm photon counting pixels/doi:/rivista:Journal of modern optics (Print)/anno:2007/pagina_da:213/pagina_a:223/intervallo_pagine:213–223/volume:54, 54 (2007): 213–223. doi:10.1080/09500340600790121, info:cnr-pdr/source/autori:Restelli, A; Rech, I; Maccagnani, P; Ghioni, M; Cova, S/titolo:Monolithic silicon matrix detector with 50 microns photon counting pixels/doi:10.1080%2F09500340600790121/rivista:Journal of modern optics (Print)/anno:2007/pagina_da:213/pagina_a:223/intervallo_pagine:213–223/volume:54
Accession number :
edsair.doi.dedup.....45f2370adc5ab1d0f02d42cdf071bdb5
Full Text :
https://doi.org/10.1080/09500340600790121