Lithographically patterned fiber bundles for in-vivo Raman spectroscopy

J. B. Barton; G. E. Carver; S. K. Chanda; W. J. Cote; Sarah Locknar; Manish Gupta

doi:10.1117/12.2610041

2 March 2022 Lithographically patterned fiber bundles for in-vivo Raman spectroscopy

J. B. Barton, G. E. Carver, S. K. Chanda, W. J. Cote, Sarah Locknar, Manish Gupta

Proceedings Volume 11953, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXII; 119530G (2022) https://doi.org/10.1117/12.2610041
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

Raman spectroscopy can be used extensively, from handheld substance identification systems to in-vivo cancer detection. The ability to quickly and non-invasively identify compounds based on intrinsic vibrational signatures has seen Raman applications skyrocket in recent years - many using fiber optic probes. This paper describes the modeling, deposition, lithographic patterning, and testing of filters directly deposited onto the distal tip of a fiber bundle. These spectrally sharp bandpass and long pass filters allow for the detection of Raman scattering down to about 200 cm^-1 . Blocking of laser radiation above OD6 is enabled by coating both the distal and proximal tips.

Conference Presentation

Citation Download Citation

J. B. Barton, G. E. Carver, S. K. Chanda, W. J. Cote, Sarah Locknar, and Manish Gupta "Lithographically patterned fiber bundles for in-vivo Raman spectroscopy", Proc. SPIE 11953, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXII, 119530G (2 March 2022); https://doi.org/10.1117/12.2610041

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