On the time gating of SPADs in a synchronized time-gated SPAD array in Raman spectroscopy

Nissinen, Ilkka; Nissinen, Jan; Kostamovaara, Juha (2017-12-25)
 
Avaa tiedosto
Lataukset: 

URL:
https://doi.org/10.1109/ICSENS.2017.8234102

Nissinen, Ilkka
Nissinen, Jan
Kostamovaara, Juha
Institute of Electrical and Electronics Engineers
25.12.2017

I. Nissinen, J. Nissinen and J. Kostamovaara, "On the time gating of SPADs in a synchronized time-gated SPAD array in Raman spectroscopy," 2017 IEEE SENSORS, Glasgow, United Kingdom, 2017, pp. 1-3. doi: 10.1109/ICSENS.2017.8234102

https://rightsstatements.org/vocab/InC/1.0/
© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
https://rightsstatements.org/vocab/InC/1.0/
doi:https://doi.org/10.1109/ICSENS.2017.8234102
Näytä kaikki kuvailutiedot
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe201801172102
Tiivistelmä

Abstract

The effect of the timing of the biasing of a single photon avalanche diode (SPAD) on the accuracy of a time-gated SPAD array has been studied in this work. The measurement was realized in a time-gated Raman spectrometer utilizing a 16×256 CMOS SPAD array with on-chip time gating electronics. SPADs have to be biased into the Geiger-mode just before arriving Raman scattered photons from the sample to achieve synchronous measurements with a pulsed laser, and to minimize the dark count noise. The practical realization is, however, not straight-forward due to the strict timing requirements (∼50ps). With the shown biasing arrangement high timing accuracy and low noise can be achieved without sacrificing the fill factor of the detector array.

Kokoelmat