Abstract

A tunable diode laser has been incorporated as a source in an operating high resolution vacuum grating spectrometer. The advantages of such a system for recording molecular spectra have been elaborated. In the process of developing this system, several practical problems came about, and it has been considered useful to document the manner in which they have been resolved. In particular, for work in the region of 15 μm, it was advantageous to develop an air-spaced Fabry-Perot etalon to record fringes simultaneously with the scanning of molecular spectra. This was successfully done, and the ν₂ band lines of the HCN molecule at 14 μm have proved to be ideally suited for determining the fringe spacing spectroscopically.

© 1979 Optical Society of America

High sensitivity point monitoring of ozone, and high resolution spectroscopy of the ν₃ band of ozone using a tunable semiconductor diode laser

M. El-Sherbiny, E. A. Ballik, J. Shewchun, B. K. Garside, and J. Reid
Appl. Opt. 18(8) 1198-1203 (1979)

Heterodyne frequency measurements with a tunable diode laser-CO₂ laser spectrometer: spectroscopic reference frequencies in the 9.5-μm band of carbonyl sulfide

J. S. Wells, F. R. Petersen, and A. G. Maki
Appl. Opt. 18(21) 3567-3573 (1979)

Diode laser–CO₂ laser heterodyne spectrometer: measurement of 2sQ(1,1) in 2ν₂ − ν₂ of NH₃

J. J. Hillman, D. E. Jennings, and J. L. Faris
Appl. Opt. 18(11) 1808-1811 (1979)

Wavelength Calibrations in Infrared. III. ν₂ of HCN at 14 Microns*

K. Narahari Rao, W. W. Brim, and J. M. Hoffman
J. Opt. Soc. Am. 50(3) 228-231 (1960)

High resolution Fabry-Perot spectrometer for infrared astronomy

P. B. van der Wal and J. Slingerland
Appl. Opt. 18(5) 641-648 (1979)