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Spectral Collocation Time-Domain Modeling of Diffractive Optical Elements

✍ Scribed by J.S. Hesthaven; P.G. Dinesen; J.P. Lynov

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 280 KB
Volume: 155
Category: Article
ISSN: 0021-9991
DOI: 10.1006/jcph.1999.6333

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✦ Synopsis

A spectral collocation multi-domain scheme is developed for the accurate and efficient time-domain solution of Maxwell's equations within multi-layered diffractive optical elements. Special attention is being paid to the modeling of out-of-plane waveguide couplers. Emphasis is given to the proper construction of high-order schemes with the ability to handle very general problems of considerable geometric and material complexity. Central questions regarding efficient absorbing boundary conditions and time-stepping issues are also addressed. The efficacy of the overall scheme for the time-domain modeling of electrically large, and computationally challenging, problems is illustrated by solving a number of plane as well as non-plane waveguide problems.

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