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Hyper‐spectral Raman imaging using a diffractive optical element
Author(s) -
Thomson G. A.,
Thorley F. C.,
Batchelder D. N.
Publication year - 2003
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.965
Subject(s) - raman spectroscopy , confocal , chemical imaging , optics , sampling (signal processing) , laser , microscope , sample (material) , materials science , analytical chemistry (journal) , raman microscope , multiplexing , microscopy , chemistry , raman scattering , physics , computer science , artificial intelligence , hyperspectral imaging , telecommunications , chromatography , detector
A modification to a conventional imaging Raman microscope to allow the acquisition of quasi‐confocal spectra from multiple discrete Raman sampling volumes is reported. Preliminary performance was demonstrated by generating an extended area hyper‐spectral chemical map of a number of ground sulfur crystals deposited on an aluminium mirror. Images generated using this multiplexed sampling arrangement were found to contain a number of weak ghost images (cross‐talk), corresponding to inadequate separation of the focused laser spots at the sample. Copyright © 2003 John Wiley & Sons, Ltd.