Issue 3, 2016

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

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

Article information

Article type
Critical Review
Submitted
15 Oct 2015
Accepted
24 Nov 2015
First published
08 Dec 2015
This article is Open Access
Creative Commons BY license

Analyst, 2016,141, 731-739

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

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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