A microcomputer-controlled color-center laser has been designed for broadband tunability and high-resolution sub-Doppler spectroscopy. The application of the programming language FORTH for the controlling software provides high versatility and universal applicability to microcomputer-controlled laser spectrometers. Different tuning modes were optimized, allowing continuous-frequency scans over several wave numbers with a resolution of 15 MHz as well as high-resolution scans over 2 GHz with a step width of <100 kHz. Intracavity and extracavity detection techniques were tested on the ν1 fundamental band of isothiocyanic acid and on the hydrofluoric acid P(4) vibration-rotation transition, indicating a resolution limit of <10−5 cm−1 for the spectrometer.
© 1985 Optical Society of America
H. Adams, R. Brüggemann, P. Dietrich, D. Kirsten, H. Solka, and W. Urban, "Broadly tunable microcomputer-controlled color-center laser for intracavity and extracavity sub-Doppler spectroscopy," J. Opt. Soc. Am. B 2, 815-828 (1985)