Tunable diode laser spectral diagnostic studies of a pressure modulator radiometer
Abstract
The successful application of high-resolution tunable diode laser spectroscopy to the diagnostic measurement of a pressure modulator radiometer (PMR) is reported, and recorded line transmission profiles for a single N2O line at 1272/cm are presented. PMR measurements obtained for mean cell pressures of about 10, 20, and 30 Torr were found to be consistent with theoretical predictions. The validity of single-pressure and two-pressure approximation representations of the mean and modulated PMR transmission spectra has been verified.
- Publication:
-
Applied Optics
- Pub Date:
- September 1988
- DOI:
- 10.1364/AO.27.003591
- Bibcode:
- 1988ApOpt..27.3591M
- Keywords:
-
- Gas Pressure;
- Gas Spectroscopy;
- Laser Spectroscopy;
- Radiometers;
- Tunable Lasers;
- Emission Spectra;
- Line Spectra;
- Nitrous Oxides;
- Semiconductor Diodes;
- Instrumentation and Photography;
- SPECTROSCOPY: HIGH-RESOLUTION;
- RADIOMETERS;
- MODULATORS