Journal
SENSORS
Volume 14, Issue 11, Pages 21968-21980Publisher
MDPI
DOI: 10.3390/s141121968
Keywords
multichannel Raman spectroscopy; astronomy spectrograph; optical fiber bundle; Raman imaging
Funding
- BMBF VIP program [03V0843]
- BMBF Astrophysik program, ERASMUS-F [05 A12BA1]
- European Southern Observatory
- CCD
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Until now, spatially resolved Raman Spectroscopy has required to scan a sample under investigation in a time-consuming step-by-step procedure. Here, we present a technique that allows the capture of an entire Raman image with only one single exposure. The Raman scattering arising from the sample was collected with a fiber-coupled high-performance astronomy spectrograph. The probe head consisting of an array of 20 x 20 multimode fibers was linked to the camera port of a microscope. To demonstrate the high potential of this new concept, Raman images of reference samples were recorded. Entire chemical maps were received without the need for a scanning procedure.
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