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Proceedings Paper

Fiber bundles with integrated bandpass and notch filters for in-vivo Raman spectroscopy
Author(s): John Barton; Gary Carver; Sheetal Chanda; Sarah Locknar; Manish Gupta
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Paper Abstract

Raman spectroscopy is used in many areas including pharmaceuticals, geology, chemical engineering, semiconductors, and the life sciences. More recently, Raman fiber sensors have been developed for minimally invasive applications in clinical histopathology. This paper describes the modeling, fabrication, and testing of filters directly deposited onto the excitation and collection fiber tips of a Raman probe. The narrow spectral width of laser rejection filters on the collection fibers should allow for the detection of low wavenumber Raman scattering within the “fingerprint” region. Deep blocking of the laser radiation is enabled by coating both ends of the collection fibers.

Paper Details

Date Published: 20 February 2020
PDF: 6 pages
Proc. SPIE 11233, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX, 112330S (20 February 2020); doi: 10.1117/12.2546207
Show Author Affiliations
John Barton, Omega Optical, Inc. (United States)
Gary Carver, Omega Optical, Inc. (United States)
Sheetal Chanda, Omega Optical, Inc. (United States)
Sarah Locknar, Omega Optical, Inc. (United States)
Manish Gupta, Nikira Labs, Inc. (United States)

Published in SPIE Proceedings Vol. 11233:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX
Israel Gannot, Editor(s)

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