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Open AccessFeature PaperArticle

Evaluation of a Spatial Heterodyne Spectrometer for Raman Spectroscopy of Minerals

1
BAM Federal Institute of Materials Research and Testing, Richard-Willstäter-Strasse 11, 12489 Berlin, Germany
2
School of Analytical Sciences Adlershof (SALSA), Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
*
Author to whom correspondence should be addressed.
Minerals 2020, 10(2), 202; https://doi.org/10.3390/min10020202
Received: 30 January 2020 / Revised: 19 February 2020 / Accepted: 20 February 2020 / Published: 24 February 2020
(This article belongs to the Special Issue Modern Raman Spectroscopy of Minerals)
Spatial heterodyne spectroscopy (SHS) is a novel spectral analysis technique that is being applied for Raman spectroscopy of minerals. This paper presents the theoretical basis of SHS and its application for Raman measurements of calcite, quartz and forsterite in marble, copper ore and nickel ore, respectively. The SHS measurements are done using a broadband (518–686 nm) and resolving power R 3000 instrument. The spectra obtained using SHS are compared to those obtained by benchtop and modular dispersive spectrometers. It is found that SHRS performance in terms of resolution is comparable to that of the benchtop spectrometer and better than the modular dispersive spectrometer, while the sensitivity of SHRS is worse than that of a benchtop spectrometer, but better than that of a modular dispersive spectrometer. When considered that SHS components are small and can be packaged into a handheld device, there is interest in developing an SHS-based instrument for mobile Raman spectroscopy. This paper evaluates the possibility of such an application. View Full-Text
Keywords: spatial heterodyne spectrometer; interferometric spectroscopy; fourier transform spectroscopy; Raman spectroscopy; calcite; quartz; forsterite spatial heterodyne spectrometer; interferometric spectroscopy; fourier transform spectroscopy; Raman spectroscopy; calcite; quartz; forsterite
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MDPI and ACS Style

Zettner, A.; Gojani, A.B.; Schmid, T.; Gornushkin, I.B. Evaluation of a Spatial Heterodyne Spectrometer for Raman Spectroscopy of Minerals. Minerals 2020, 10, 202.

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