Novel detector solutions for diffuse correlation spectroscopy at 1064 nm (Conference Presentation)

Megan Blackwell; Robert Berger; George Jordy; Jonathan Frechette; Brian Aull; Erik K. Duerr; Mitchell Robinson; Davide Tamborini; Stefan A. Carp; Maria Angela Franceschini

doi:10.1117/12.2545178

9 March 2020 Novel detector solutions for diffuse correlation spectroscopy at 1064 nm (Conference Presentation)

Megan Blackwell, Robert Berger, George Jordy, Jonathan Frechette, Brian Aull, Erik K. Duerr, Mitchell Robinson, Davide Tamborini, Stefan A. Carp, Maria Angela Franceschini

Author Affiliations +

Proceedings Volume 11239, Dynamics and Fluctuations in Biomedical Photonics XVII; 112390E (2020) https://doi.org/10.1117/12.2545178
Event: SPIE BiOS, 2020, San Francisco, California, United States

Abstract

Our team has recently shown the SNR and depth-sensitivity advantages of using 1064 nm light for diffuse correlation spectroscopy as well as the challenges of commercially available single-photon detectors at this wavelength. We will review two strategies for custom readout integrated circuit designs that simultaneously target lower pixel dead times and lower afterpulsing probabilities. Both designs use macropixels comprising many detectors, each having a programmable hold-off time. We will compare simulated autocorrelations for our detector models and compare predicted performance against commercial InGaAs/InP detectors.

Conference Presentation

Citation Download Citation

Megan Blackwell, Robert Berger, George Jordy, Jonathan Frechette, Brian Aull, Erik K. Duerr, Mitchell Robinson, Davide Tamborini, Stefan A. Carp, and Maria Angela Franceschini "Novel detector solutions for diffuse correlation spectroscopy at 1064 nm (Conference Presentation)", Proc. SPIE 11239, Dynamics and Fluctuations in Biomedical Photonics XVII, 112390E (9 March 2020); https://doi.org/10.1117/12.2545178

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