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Proceedings Paper

Single axis multipass VIPA spectroscopy (Conference Presentation)
Author(s): Antonio Fiore; Giuliano Scarcelli

Paper Abstract

Brillouin light scattering spectroscopy is an emerging technology providing label-free measurements of the viscoelastic properties of biological samples. Traditionally, Brillouin spectroscopy is performed using multipass Fabry Perot spectrometers, which allows high spectral extinction but low speed, or cross-axis Virtually Image Phased Array (VIPA) based spectrometers, with rapid single shot measurements but limited extinction. Here we present a multipass VIPA-based spectrometer, in which light is dispersed along the same axis at every stage and recirculated in the same etalon multiple times. This technical advancement allows single-shot high extinction Brillouin measurements as well as reduced spread of instrumental spectral linewidth.

Paper Details

Date Published: 10 March 2020
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Proc. SPIE 11253, Biomedical Applications of Light Scattering X, 112530C (10 March 2020); doi: 10.1117/12.2547540
Show Author Affiliations
Antonio Fiore, Univ. of Maryland, College Park (United States)
Giuliano Scarcelli, Univ. of Maryland, College Park (United States)


Published in SPIE Proceedings Vol. 11253:
Biomedical Applications of Light Scattering X
Adam Wax; Vadim Backman, Editor(s)

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