Fiber bundles with integrated bandpass and notch filters for in-vivo Raman spectroscopy

John Barton; Gary Carver; Sheetal Chanda; Sarah Locknar; Manish Gupta

doi:10.1117/12.2546207

20 February 2020 Fiber bundles with integrated bandpass and notch filters for in-vivo Raman spectroscopy

John Barton, Gary Carver, Sheetal Chanda, Sarah Locknar, Manish Gupta

Proceedings Volume 11233, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX; 112330S (2020) https://doi.org/10.1117/12.2546207
Event: SPIE BiOS, 2020, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

John Barton, Gary Carver, Sheetal Chanda, Sarah Locknar, and Manish Gupta "Fiber bundles with integrated bandpass and notch filters for in-vivo Raman spectroscopy", Proc. SPIE 11233, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX, 112330S (20 February 2020); https://doi.org/10.1117/12.2546207

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