Waveguides coupled via apertures: asymptotic form of the eigenvalue

Authors
Popov, IY
Citation
Iy. Popov, Waveguides coupled via apertures: asymptotic form of the eigenvalue, TECH PHYS L, 25(2), 1999, pp. 106-107
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
TECHNICAL PHYSICS LETTERS
ISSN journal
10637850 → ACNP
Volume
25
Issue
2
Year of publication
1999
Pages
106 - 107
Database
ISI
SICI code
1063-7850(199902)25:2<106:WCVAAF>2.0.ZU;2-R
Abstract
An analysis is made of the problem of waveguides coupled via small aperture s. A method of matching the asymptotic expansions of solutions is used to f ind the asymptotic form of the eigenvalue which tends to the lower limit of the continuous spectrum for a small parameter, i.e., the aperture diameter . A similar asymptotic form is obtained for several coupling apertures. (C) 1999 American Institute of Physics. [S1063-7850(99)01002-2].