Wide-angle beam propagation method using local reference indices
Journal
Journal of Lightwave Technology
Journal Volume
27
Journal Issue
16
Pages
3381-3388
Date Issued
2009
Author(s)
Du, C.-H.
Abstract
Inspired by the local dimming technology in liquid crystal displays, we propose a modified wide-angle beam propagation formulation with local reference indices for the first time to improve the performance in wide-angle simulation. The reference indices in the proposed formulation are spatially varying in both propagation and transverse directions, instead of a single reference index over the whole computation domain as in commonly used formulation. The proposed formulation is simple and only a minor modification from conventional one, and extra computation effort is relatively small. It can greatly improve the accuracy in modeling for wide-angle cases.
Type
journal article