Efficient 3D FDTD analysis of arbitrary birefringent and dichroic media with obliquely incident sources

Matthew N. Miskiewicz; Patrick T. Bowen; Michael J. Escuti

doi:10.1117/12.913628

28 February 2012 Efficient 3D FDTD analysis of arbitrary birefringent and dichroic media with obliquely incident sources

Matthew N. Miskiewicz, Patrick T. Bowen, Michael J. Escuti

Author Affiliations +

Proceedings Volume 8255, Physics and Simulation of Optoelectronic Devices XX; 82550W (2012) https://doi.org/10.1117/12.913628
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We have developed a 3D Finite Difference Time Domain (FDTD) algorithm to model obliquely incident waves through arbitrary birefringent and dichroic media with transverse periodic boundaries. Beginning with arbitrary conductivity and permittivity tensors, we employed the split-field method (SFM) to enable broadband sources with oblique incidence. We terminate our boundaries with a uniaxial perfectly matched layer (UPML) in one dimension and periodic boundaries in the other two dimensions. The algorithm is validated via several case studies: a polarizer pair, a twisted nematic liquid crystal, and an array of conducting particles. Using this approach, we simulate for the first time polarization gratings with light obliquely incident in directions orthogonal to the grating vector (i.e., at oblique angles outside the normal diffraction plane).

Citation Download Citation

Matthew N. Miskiewicz, Patrick T. Bowen, and Michael J. Escuti "Efficient 3D FDTD analysis of arbitrary birefringent and dichroic media with obliquely incident sources", Proc. SPIE 8255, Physics and Simulation of Optoelectronic Devices XX, 82550W (28 February 2012); https://doi.org/10.1117/12.913628

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