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Near-infrared Raman spectroscopy using hollow-core photonic bandgap fibers |
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| Authors: | K.M. Tan G.P. Singh C.S. Herrington |
| Affiliation: | a SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews, Fife, KY16 9SS, UK b Bute Medical School, Bute Building, University of St. Andrews, St. Andrews, Fife, KY16 9TS, UK |
| Abstract: | We report a NIR Raman spectroscopy system incorporating hollow-core photonic bandgap fibers (HC-PBFs) in both the excitation and collection paths. Raman excitation was achieved at NIR laser wavelength of 785 nm. We demonstrate that using HC-PBFs, Raman spectroscopy can be performed without the use of an additional longpass filter on the collection side. A narrow bandpass filter on the excitation side is also not required. These results provide a framework where HC-PBF based Raman probes can be developed and used in space restricted biomedical and sensing applications. |
| Keywords: | NIR Raman spectroscopy Raman scattering Photonic bandgap fibers |
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