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
Link To Document :
