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This article is cited in 9 scientific papers (total in 9 papers)
OPTO-IT
Recovery and analysis of Raman spectra obtained using a static Fourier transform spectrometer
N. S. Vasil’eva, I. B. Vintaykina, I. S. Golyaka, I. S. Golyaka, I. V. Kochikovb, I. L. Fufurina a The Bauman Moscow State Technical University, Moscow, Russia
b Lomonosov Moscow State University
Abstract:
The recovery of Raman spectra in the 800-1050-nm spectral range from a prototype static Fourier-transform spectrometer is described. Distortion effects introduced by the optical system of the static Fourier-transform spectrometer are studied. A method of correcting optical distortion is suggested. The proposed algorithm is tested using a monochromatic radiation source. A two-dimensional map of period distribution in the distorted interference pattern is plotted. A mapping that enables optical distortions of the two-dimensional interferogram to be corrected is proposed. The correction results are demonstrated by plotting interference fringe profiles. A comparison of various well-known phase correction methods in order to identify an optimal algorithm is presented. A matching criterion for the obtained spectra is proposed. Raman spectrum of a stilbene crystal obtained by a diffraction spectrometer with a resolution of $\delta\nu = 14$ cm$^{-1}$ is used as a reference.
Keywords:
Fourier optics and digital signal processing, interference pattern, Raman spectroscopy, FTIR spectroscopy, Image processing, Recognition.
Received: 24.05.2017 Accepted: 11.09.2017
Citation:
N. S. Vasil’ev, I. B. Vintaykin, I. S. Golyak, I. S. Golyak, I. V. Kochikov, I. L. Fufurin, “Recovery and analysis of Raman spectra obtained using a static Fourier transform spectrometer”, Computer Optics, 41:5 (2017), 626–635
Linking options:
https://www.mathnet.ru/eng/co431 https://www.mathnet.ru/eng/co/v41/i5/p626
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