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Sensors 2014, 14(11), 21968-21980;

Raman Imaging with a Fiber-Coupled Multichannel Spectrograph

Leibniz-Institut für Astrophysik Potsdam (AIP), An der Sternwarte 16, Potsdam 14482, Germany
GEPI Observatoire de Paris, CNRS, Université Paris Diderot, Place Jules Janssen, Meudon 92190, France
Institute of Physical Chemistry, Helmholtzweg 4, Jena 07743, Germany
Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, Jena 07745, Germany
Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam 14476, Germany
Author to whom correspondence should be addressed.
Received: 24 September 2014 / Revised: 4 November 2014 / Accepted: 11 November 2014 / Published: 20 November 2014
(This article belongs to the Section Physical Sensors)
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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 × 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. View Full-Text
Keywords: multichannel Raman spectroscopy; astronomy spectrograph; optical fiber bundle; Raman imaging multichannel Raman spectroscopy; astronomy spectrograph; optical fiber bundle; Raman imaging

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Schmälzlin, E.; Moralejo, B.; Rutowska, M.; Monreal-Ibero, A.; Sandin, C.; Tarcea, N.; Popp, J.; Roth, M.M. Raman Imaging with a Fiber-Coupled Multichannel Spectrograph. Sensors 2014, 14, 21968-21980.

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