DocumentCode
1212169
Title
Electromagnetic field near the focus of wide-angular lens and mirror systems
Author
Sheppard, C.J.R. ; Choudhury, A. ; Gannaway, J.
Author_Institution
University of Oxford, Department of Engineering Science, Oxford, UK
Volume
1
Issue
4
fYear
1977
fDate
7/1/1977 12:00:00 AM
Firstpage
129
Lastpage
132
Abstract
The time-averaged electric energy density near the focus of a parabolic mirror of wide-angular aperture is calculated and compared with that of an aplanatic lens system. The distributions exhibit great differences, the mirror showing a greater departure from circular symmetry, a more complicated structure and increased sidelobes. The vectorial integral representation of Wolf is derived from the Stratton-Chu formula.
Keywords
electromagnetic fields; lenses; mirrors; optical systems; Stratton-Chu formula; Wolf´s vectorial representation; aplanatic lens system; circular symmetry; parabolic mirror; time averaged electric energy density;
fLanguage
English
Journal_Title
Microwaves, Optics and Acoustics, IEE Journal on
Publisher
iet
ISSN
0308-6976
Type
jour
DOI
10.1049/ij-moa.1977.0015
Filename
4807436
Link To Document