Development of a selective interference filter for measuring concentrations of trace gases in the stratosphere
Abstract
A Michelson interferometer set at zero path difference and containing gas samples in its arms can act as a highly selective filter passing only radiation very near the absorption line centres of the gas. An assessment of a variety of instruments having this property is made and the construction of a Mach-Zehnder arrangement is discussed.
- Publication:
-
Infrared Physics
- Pub Date:
- August 1979
- DOI:
- 10.1016/0020-0891(79)90053-8
- Bibcode:
- 1979InfPh..19..423G
- Keywords:
-
- Gas Composition;
- Infrared Filters;
- Mach-Zehnder Interferometers;
- Michelson Interferometers;
- Stratosphere;
- Trace Elements;
- Absorption Spectra;
- Air Sampling;
- Amplitude Modulation;
- Atmospheric Composition;
- Beam Splitters;
- Gas Density;
- Gas Spectroscopy;
- Instrumentation and Photography