Title :
A Simulation Procedure Interfacing Ray-Tracing and Finite-Difference Time-Domain Methods for a Combined Simulation of Diffractive and Refractive Optical Elements
Author :
Leiner, Claude ; Schweitzer, Susanne ; Wenzl, Franz-Peter ; Hartmann, Peter ; Hohenester, Ulrich ; Sommer, Christoph
Author_Institution :
Inst. of Surface Technol. & Photonics, Joanneum Res. Forschungsges.mbH, Weiz, Austria
Abstract :
A simulation procedure which enables integrated simulation of optical devices including both refractive and diffractive optical elements at different length scales is presented. The approach uses the Poynting vector to interface between a Ray-tracing and a finite-difference-time-domain tool for a step by step simulation of both the light propagation through a laser-written diffractive grating structure and its measurement by an appropriate setup. These simulated results are in great accordance with experimentally determined ones. Furthermore, the impact of parameter variations is analyzed and discussed in detail.
Keywords :
diffraction gratings; diffractive optical elements; finite difference time-domain analysis; integrated optics; light propagation; light refraction; ray tracing; Poynting vector; diffractive optical elements; finite-difference time-domain method; integrated simulation; laser-written diffractive grating structure; light propagation; optical devices; parameter variation; ray-tracing; refractive optical elements; simulation procedure; Diffraction; Diffraction gratings; Finite difference methods; Optical devices; Optical refraction; Time-domain analysis; Computational modeling; finite-difference-time-domain (FDTD); gratings; microstructure; ray tracing;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2013.2297411
