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Issue 3, 2016
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Micro-scale spatially offset Raman spectroscopy for non-invasive subsurface analysis of turbid materials

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Abstract

This article reviews a very recent field of noninvasive analysis of turbid media using micro-scale Spatially Offset Raman Spectroscopy – micro-SORS. The technique combines conventional SORS with microscopy concepts and represents a new imaging modality in Raman microscopy. Micro-SORS facilitates analytical capability for investigating non-destructively the chemical composition of subsurface, micrometer-scale-thick diffusely scattering layers at depths more than an order of magnitude larger than those accessible with the depth resolving power of conventional confocal Raman microscopy. Potential application areas include nondestructive subsurface analysis of painted layers in cultural heritage, characterization of stratified polymer systems, analysis of layered biological samples or forensic analysis. The article discusses the basic principles of the technique, its variants and outlines emerging applications in this rapidly evolving field.

Graphical abstract: Micro-scale spatially offset Raman spectroscopy for non-invasive subsurface analysis of turbid materials

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Article information


Submitted
15 Oct 2015
Accepted
24 Nov 2015
First published
08 Dec 2015

This article is Open Access

Analyst, 2016,141, 731-739
Article type
Critical Review

Micro-scale spatially offset Raman spectroscopy for non-invasive subsurface analysis of turbid materials

P. Matousek, C. Conti, M. Realini and C. Colombo, Analyst, 2016, 141, 731
DOI: 10.1039/C5AN02129D

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