Optical quality of supersonic jets of various gases
Abstract
The optical qualities of supersonic jets of four different gases were investigated with a view to using gas jets of varying mean optical density as phase-shifting elements in high power density, high frequency adaptive optics systems. The jets tested can be arranged in the following order of improving optical quality: Ar, N2, He, and 62% He/38% Ar. Near-field schlieren photographs and interferograms and far-field intensity distributions of a circular beam traversing the jets are presented. Methods of improving the optical quality of the jets are discussed.
- Publication:
-
Applied Optics
- Pub Date:
- March 1982
- DOI:
- 10.1364/AO.21.000893
- Bibcode:
- 1982ApOpt..21..893B
- Keywords:
-
- Adaptive Optics;
- Gas Jets;
- Image Resolution;
- Laser Interferometry;
- Phase Control;
- Supersonic Jet Flow;
- Argon;
- Far Fields;
- Helium;
- Mach-Zehnder Interferometers;
- Near Fields;
- Nitrogen;
- Quality Control;
- Schlieren Photography;
- Fluid Mechanics and Heat Transfer;
- FLOW