Operation of silicon single photon avalanche diodes at cryogenic temperature.
Rev Sci Instrum
; 78(6): 063105, 2007 Jun.
Article
en En
| MEDLINE
| ID: mdl-17614603
This article reports a complete characterization of single photon avalanche diodes (SPADs) at temperatures down to 120 K. We show that deep cooling of the device by means of a compact liquid-nitrogen Dewar brings several advantages, such as extremely low dark counting rates (down to 1 counts/s), better time resolution, and higher quantum efficiency in the visible range. By using a special current pick-off circuit, we achieved a time resolution of 20 ps full width at half maximum at 120 K for a 50 mum diameter SPAD. Afterpulsing effects are avoided by using a sufficiently long hold-off time (microseconds).
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Radiometría
/
Semiconductores
/
Silicio
/
Procesamiento de Señales Asistido por Computador
/
Fotones
/
Congelación
Tipo de estudio:
Diagnostic_studies
/
Evaluation_studies
Idioma:
En
Revista:
Rev Sci Instrum
Año:
2007
Tipo del documento:
Article
País de afiliación:
Italia
Pais de publicación:
Estados Unidos