Three-dimensional analysis of subwavelength diffractive optical elements with the finite-difference time-domain method
- 10 June 2000
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 39 (17) , 2871-2880
- https://doi.org/10.1364/ao.39.002871
Abstract
We present a three-dimensional (3D) analysis of subwavelength diffractive optical elements (DOE’s), using the finite-difference time-domain (FDTD) method. To this end we develop and apply efficient 3D FDTD methods that exploit DOE properties, such as symmetry. An axisymmetric method is validated experimentally and is used to validate the more general 3D method. Analyses of subwavelength gratings and lenses, both with and without rotational symmetry, are presented in addition to a 2 × 2 subwavelength focusing array generator.Keywords
This publication has 14 references indexed in Scilit:
- Formulation and application of the finite-difference time-domain method for the analysis of axially symmetric diffractive optical elementsJournal of the Optical Society of America A, 1999
- Blazed binary subwavelength gratings with efficiencies larger than those of conventional échelette gratingsOptics Letters, 1998
- Boundary integral methods applied to the analysis of diffractive optical elementsJournal of the Optical Society of America A, 1997
- Rigorous electromagnetic analysis of diffractive cylindrical lensesJournal of the Optical Society of America A, 1996
- A hybrid finite element-boundary element method for the analysis of diffractive elementsJournal of Modern Optics, 1996
- Finite-difference time-domain algorithm for solving Maxwell's equations in rotationally symmetric geometriesIEEE Transactions on Microwave Theory and Techniques, 1996
- Body-of-revolution finite-difference time-domain modeling of space–time focusing by a three-dimensional lensJournal of the Optical Society of America A, 1994
- Binary gratings with increased efficiencyApplied Optics, 1992
- A frequency-dependent finite-difference time-domain formulation for dispersive materialsIEEE Transactions on Electromagnetic Compatibility, 1990
- Analysis and applications of optical diffraction by gratingsProceedings of the IEEE, 1985