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Multi‐channel micro‐Raman spectroscopy with near‐infrared excitation. II
Author(s) -
Barbillat J.,
Da Silva E.,
Hallaert J. L.
Publication year - 1993
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250240107
Subject(s) - raman spectroscopy , analytical chemistry (journal) , infrared , laser , materials science , fluorescence , near infrared spectroscopy , fourier transform spectroscopy , germanium , detector , optics , optoelectronics , chemistry , silicon , physics , chromatography
The performances of a multiplexed near‐infrared (NIR) germanium detector and of a InGaAs photodiode‐array detector are reported. Their use with an Nd: YAG laser at 1.064 μm to obtain high‐quality fluorescence‐free Raman spectra of micro‐samples is illustrated. A comparison with Fourier transform Raman spectra of much larger samples demonstrates that NIR multi‐channel Raman spectroscopy is competitive for fluorescence‐free measurement of Raman spectra.