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IEICE TRANSACTIONS on Electronics

Analysis of Wave Guidance by Surface-Relief Grating Waveguides for Oblique Propagation

Keiji MATSUMOTO, Katsu ROKUSHIMA, Jiro YAMAKITA

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Summary :

An analysis of wave guidance by surface-relief grating waveguides is presented for the case of oblique propagation. This analysis is based on the first-order differential equations expressing the coupling of the space harmonics and an improved differential method is applied to solve the equations in the grating region with arbitrary profile. The propagation constants are calculated for isotropic grating waveguids with sinusoidal profile and the calculated results indicate that the accurate solutions can be obtained by increasing the number of expansion terms and the number of segments. Moreover, this method is extended to the case of the analysis of obliquely propagating waves and it is shown that peculiar leaky waves and stop bands appear owing to the coupling between TE and TM waves.

Publication
IEICE TRANSACTIONS on Electronics Vol.E76-C No.10 pp.1498-1504
Publication Date
1993/10/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on the 1992 Symposium on Electromagnetic Theory)
Category
Optical Device

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