Methods of zero-order non-coherent filtering
Abstract
Zero-order non-coherent optical filtering can be performed by subtraction of images recorded with two different filters. In this paper filters are studied which differ by the average phase of certain parts in the frequency plane. Band-pass and differentiation filters can be realized in that way.
- Publication:
-
Optics Communications
- Pub Date:
- January 1977
- DOI:
- 10.1016/0030-4018(77)90163-8
- Bibcode:
- 1977OptCo..20...68G