Lithographically patterned fiber bundles for in-vivo Raman spectroscopy
Presented at SPIE BiOS, 2022
Proceedings Volume 11953, Optical Fibers and Sensors for Medical Diagnostics, Treatment
and Environmental Applications XXII; 119530G (2022)
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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.
