DocumentCode :
1093814
Title :
A figure of merit for iso-index filter materials
Author :
Henderson, D. Michael
Author_Institution :
Hughes Aircraft Company, Culver City, CA, USA
Volume :
18
Issue :
5
fYear :
1982
fDate :
5/1/1982 12:00:00 AM
Firstpage :
921
Lastpage :
925
Abstract :
A discussion of materials for dispersive birefringent filters which simultaneously exhibit extremely narrow bandwidths (< 1 Å) and wide fields of view ( 
acceptance angle) will be presented in this paper. Two specific types, the iso-index filter and the dispersive birefringent Lyot filter are considered. First, a figure of merit for the filter material is derived. Then the figure is related to the optical properties of the material. From this analysis the dependence of the filter bandwidth on crystal birefringence and optical bandedge characteristics is obtained.
acceptance angle) will be presented in this paper. Two specific types, the iso-index filter and the dispersive birefringent Lyot filter are considered. First, a figure of merit for the filter material is derived. Then the figure is related to the optical properties of the material. From this analysis the dependence of the filter bandwidth on crystal birefringence and optical bandedge characteristics is obtained.Keywords :
Optical filters; Optical propagation in dispersive media; Optical refraction; Bandwidth; Birefringence; Crystalline materials; Crystals; Dispersion; Interference; Optical filters; Optical materials; Optical polarization; Underwater communication;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1982.1071623
Filename :
1071623
Link To Document :
