Three-dimensional analysis of subwavelength diffractive optical elements with the finite-difference time-domain method

Authors
Mirotznik, MS Prather, DW Mait, JN Beck, WA Shi, SY Gao, X
Citation
Ms. Mirotznik et al., Three-dimensional analysis of subwavelength diffractive optical elements with the finite-difference time-domain method, APPL OPTICS, 39(17), 2000, pp. 2871-2880
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
APPLIED OPTICS
ISSN journal
00036935 → ACNP
Volume
39
Issue
17
Year of publication
2000
Pages
2871 - 2880
Database
ISI
SICI code
0003-6935(20000610)39:17<2871:TAOSDO>2.0.ZU;2-Y
Abstract
We present a three-dimensional (3D) analysis of subwavelength diffractive o ptical elements (DOE's), using the finite-difference time-domain (FDTD) met hod. To this end we develop and apply efficient 3D FDTD methods that exploi t DOE properties, such as symmetry. An axisymmetric method is validated exp erimentally and is used to validate the more general 3D method. Analyses of subwavelength gratings and lenses, both with and without rotational symmet ry, are presented in addition to a 2 x 2 subwavelength focusing array gener ator. (C) 2000 Optical Society of America. OCIS codes: 050.1970, 000.4430.