Abstract:
The issues of the development, calibration and putting into operation of a diode laser spectrometer for high-precision measurements are considered. The tests rely on the use of an isolated P20 line of the 00031–00001 band of the 12C16O2 molecule. The spectrometer error budget is analysed. A software programme for the approximation of a spectral line contour is designed and the procedure is analysed. It is shown that, for a baseline with a relative level of 2.3 × 10-5, it is optimal to use no more than six fitting parameters in the line contour approximation. The measured integral intensity of the analytical line constitutes 5.3865(85) × 10-23 cm per molecule.
Keywords:
diode laser, spectroscopy, spectral line intensity.
Citation:
A. I. Nadezhdinskii, Ya. Ya. Ponurovskii, “Diode laser spectrometer for high-precision measurements”, Kvantovaya Elektronika, 49:7 (2019), 613–622 [Quantum Electron., 49:7 (2019), 613–622]
Linking options:
https://www.mathnet.ru/eng/qe17072
https://www.mathnet.ru/eng/qe/v49/i7/p613
This publication is cited in the following 14 articles:
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