Computer Processing of Tunable Diode Laser Spectra
- 1 July 1989
- journal article
- research article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 43 (5), 834-839
- https://doi.org/10.1366/0003702894202175
Abstract
A computer-controlled tunable diode laser spectrometer and spectral analysis software are described. The three-channel system records simultaneously the transmission of a subject gas, a temperature-stabilized etalon, and a calibration gas. The software routines are applied to diode laser spectra of HNO3 and NO2 to illustrate the procedures adopted for conversion of raw spectral data to useful transmission and harmonic spectra. Extraction of line positions, absorption intensities, collisional broadening coefficients, and gas concentrations from recorded spectra is also described.Keywords
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