Journal
APPLIED SPECTROSCOPY
Volume 65, Issue 9, Pages 1083-1086Publisher
SOC APPLIED SPECTROSCOPY
DOI: 10.1366/11-06280
Keywords
Wavelength calibration; Parameter fitting; Spectrometer alignment; Flat-field spectrometers; Spherical varied line space gratings
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Funding
- National High Technology Research and Development Program (863 Program) of China [2010AA10Z201]
- Chinese Academy of China [YZ200922]
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A portable spectrometer prototype is built to study wavelength calibration for flat-field grating spectrometers. An accurate calibration method called parameter fitting is presented. Both optical and structural parameters of the spectrometer are included in the wavelength calibration model, which accurately describes the relationship between wavelength and pixel position. Along with higher calibration accuracy, the proposed calibration method can provide information about errors in the installation of the optical components, which will be helpful for spectrometer alignment.
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