Acoustically tuned optical filter system
Abstract
Two crystals, made of acousto-optical material and having their respective extraordinary axes at a predetermined angle to each other, are acoustically excited; and, in combination with a polarizer and an analyzer, the acoustically excited crystals permit the complete transmission or rejection of a preselected narrow band of polarized light in the visible/infrared wavelength of the region.
- Publication:
-
Air Force Interim Report
- Pub Date:
- April 1985
- Bibcode:
- 1985aifo.reptR....A
- Keywords:
-
- Acousto-Optics;
- Circuits;
- Crystals;
- Optical Filters;
- Tuning;
- Infrared Spectra;
- Optical Materials;
- Patents;
- Visible Spectrum;
- Solid-State Physics