An Electronically Tunable, First-Order Fabry-Perot Infrared Filter.
Abstract
A tunable infrared filter capable of scanning from 8.2 to 12.8 micrometers has been designed, constructed and tested. It is a first order Fabry Perot interferometer with piezoelectrically driven cavity spacing. Multilayer dielectric coatings for the partially transmitting mirrors were designed to minimize the wavelength dependent phase change produced by reflection. The transmission bandwidth ranged from 2.8 to 4.0% across the tuning range. Continuous scanning at 20 Hz rates was demonstrated.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 10, 1995
- Accession Number
- ADA294561
Entities
People
- D. S. Levy
- J. T. Knudtson
- K. C. Herr
Organizations
- The Aerospace Corporation