Table of Contents
Advances in Optical Technologies
Volume 2014, Article ID 682614, 4 pages
http://dx.doi.org/10.1155/2014/682614
Research Article

Optical Response to Submicron Digital Elements Simulated by FDTD Wavelets with Refractive Impulse

UHRL, P.O. Box 700001, San Jose, CA 95170, USA

Received 25 July 2013; Accepted 28 January 2014; Published 4 March 2014

Academic Editor: Qiang Lin

Copyright © 2014 Antony J. Bourdillon. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Accurate simulation from digital, submicron, optical elements is obtained by finite difference time domain (FDTD) results that are phase analyzed as sources for Huygens wavelets on fine scales much shorter than the wavelength used. Results, from the MIT electromagnetic evaluation program, are renormalized by a method here called “refractive impulse.” This is valid for polarized responses from digital diffractive and focusing optics. The method is employed with plane wave incidence at any angle or with diverging or converging beams. It is more systematic, more versatile, and more accurate than commercial substitutes.