DocumentCode
1060916
Title
"Buried modes" in planar media with nonmonotonically varying index of refraction
Author
Conwell, Esther M.
Author_Institution
Xerox Webster Research Center, Webster, NY, USA
Volume
11
Issue
5
fYear
1975
fDate
5/1/1975 12:00:00 AM
Firstpage
217
Lastpage
218
Abstract
When guiding is due to a continuously varying, rather than discontinuous, index of refraction, 
, and peaks at some point inside the propagation medium, there may result "buried modes," i.e., modes whose exponential decay takes place inside the guiding medium rather than, as is usual, in an adjacent medium. The conditions for obtaining these modes are discussed in the Wentzel-Kramer-Brillouin (WKB) approximation and the mode equations given for both these modes and the usual ones for an illustrative case.
, and peaks at some point inside the propagation medium, there may result "buried modes," i.e., modes whose exponential decay takes place inside the guiding medium rather than, as is usual, in an adjacent medium. The conditions for obtaining these modes are discussed in the Wentzel-Kramer-Brillouin (WKB) approximation and the mode equations given for both these modes and the usual ones for an illustrative case.Keywords
Attenuation; Dielectric constant; Differential equations; Glass; Impurities; Partial differential equations; Reflection; Scattering; Turning;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.1975.1068601
Filename
1068601
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