Optimization of a field-widened Michelson interferometer
Abstract
The optical design of a wide-angle fixed-path Michelson interferometer consisting of two arm glasses and an air gap is considered. It is shown that this configuration can be optimized to give extra large fringes (over 50 deg in diameter) over a range of wavelength, a path difference nearly independent of wavelength, or a path difference specified differently at two different wavelengths for observing a pair of doublets. Specific examples refer to the airglow wavelengths of 557.7, 630.0, 732.0 nm and others, and to a path difference of 4.5 cm. The properties of different glass combinations are discussed.
- Publication:
-
Applied Optics
- Pub Date:
- June 1985
- DOI:
- 10.1364/AO.24.001604
- Bibcode:
- 1985ApOpt..24.1604G
- Keywords:
-
- Michelson Interferometers;
- Spacecraft Instruments;
- Wide Angle Lenses;
- Glass;
- Optical Paths;
- Optimization;
- Refractivity;
- Spacecraft Instrumentation;
- INTERFEROMETERS