Recovery and analysis of Raman spectra obtained using a static Fourier transform spectrometer
| Autor: | I. B. Vintaykin, Igor V. Kochikov, I. L. Fufurin, Il. S. Golyak, Ig. S. Golyak, N. S. Vasil’ev |
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| Rok vydání: | 2017 |
| Předmět: |
Diffraction
Physics Spectrometer business.industry Resolution (electron density) 02 engineering and technology 010402 general chemistry Interference (wave propagation) 01 natural sciences Atomic and Molecular Physics and Optics Fourier transform spectroscopy Spectral line 0104 chemical sciences Computer Science Applications symbols.namesake Optics Distortion 0202 electrical engineering electronic engineering information engineering symbols 020201 artificial intelligence & image processing Electrical and Electronic Engineering business Raman spectroscopy |
| Zdroj: | Computer Optics. 41:626-635 |
| ISSN: | 2412-6179 0134-2452 |
| DOI: | 10.18287/2412-6179-2017-41-5-626-635 |
| Popis: | 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 δν = 14 cm-1 is used as a reference. |
| Databáze: | OpenAIRE |
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