Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Fast single-photon avalanche diode arrays for laser Raman spectroscopy

Not Accessible

Your library or personal account may give you access

Abstract

We incorporate newly developed solid-state detector technology into time-resolved laser Raman spectroscopy, demonstrating the ability to distinguish spectra from Raman and fluorescence processes. As a proof of concept, we show fluorescence rejection on highly fluorescent mineral samples willemite and spodumene using a 128×128 single-photon avalanche diode (SPAD) array with a measured photon detection efficiency of 5%. The sensitivity achieved in this new instrument architecture is comparable to the sensitivity of a technically more complicated system using a traditional photocathode-based imager. By increasing the SPAD active area and improving coupling efficiency, we expect further improvements in sensitivity by over an order of magnitude. We discuss the relevance of these results to in situ planetary instruments, where size, weight, power, and radiation hardness are of prime concern. The potential large-scale manufacturability of silicon SPAD arrays makes them prime candidates for future portable and in situ Raman instruments spanning numerous applications where fluorescence interference is problematic.

© 2011 Optical Society of America

Full Article  |  PDF Article
More Like This
Miniaturized time-resolved Raman spectrometer for planetary science based on a fast single photon avalanche diode detector array

Jordana Blacksberg, Erik Alerstam, Yuki Maruyama, Corey J. Cochrane, and George R. Rossman
Appl. Opt. 55(4) 739-748 (2016)

Time-resolved Raman spectroscopy for in situ planetary mineralogy

Jordana Blacksberg, George R. Rossman, and Anthony Gleckler
Appl. Opt. 49(26) 4951-4962 (2010)

Measurement and modeling of microlenses fabricated on single-photon avalanche diode arrays for fill factor recovery

Juan Mata Pavia, Martin Wolf, and Edoardo Charbon
Opt. Express 22(4) 4202-4213 (2014)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved