EXTENDED ADDITIONAL LAYER METHOD OF CALCULATING THE COUPLING COEFFICIENT OF ARBITRARILY-SHAPED GRATINGS

Authors
CHO SC KIM BG DAGLI N
Citation
Sc. Cho et al., EXTENDED ADDITIONAL LAYER METHOD OF CALCULATING THE COUPLING COEFFICIENT OF ARBITRARILY-SHAPED GRATINGS, Microwave and optical technology letters, 16(3), 1997, pp. 143-145
Citations number
8
Categorie Soggetti
Optics,"Engineering, Eletrical & Electronic
Journal title
Microwave and optical technology letters → ACNP
ISSN journal
08952477
Volume
16
Issue
3
Year of publication
1997
Pages
143 - 145
Database
ISI
SICI code
0895-2477(1997)16:3<143:EALMOC>2.0.ZU;2-Z
Abstract
The extended additional layer method (EALM) of calculating the couplin g coefficient of arbitrarily shaped gratings is proposed To determine the unperturbed field distributions, a grating region is replaced by a new uniform layer whose dielectric constant is the average value of t he dielectric constant of a grating region in both the longitudinal an d transverse directions. The validity of this method is established by comparing the results calculated by partitioning the grating region u p to five uniform layers. (C) 1997 John Wiley & Sons Inc.