Design of a Binary Grating with Subwavelength Features that Acts as a Polarizing Beam Splitter
Applied Optics, Vol. 40, Issue 32, pp. 5898-5905 (2001)
http://dx.doi.org/10.1364/AO.40.005898
Acrobat PDF (194 KB)
Abstract
A binary diffractive optical element, acting as a polarizing beam splitter, is proposed and analyzed. It behaves like a transmissive blazed grating, working on the first or the second diffraction order, depending on the polarization state of the incident radiation. The grating-phase profile required for both polarization states is obtained by means of suitably sized subwavelength groups etched in an isotropic dielectric medium. A rigorous electromagnetic analysis of the grating is presented, and numerical results concerning its performances in terms of diffraction efficiency as well as frequency and angular bandwidths are provided.
© 2001 Optical Society of America
[Optical Society of America ]
OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(050.2770) Diffraction and gratings : Gratings
(260.5430) Physical optics : Polarization
Citation
Lara Pajewski, Riccardo Borghi, Giuseppe Schettini, Fabrizio Frezza, and Massimo Santarsiero, "Design of a Binary Grating with Subwavelength Features that Acts as a Polarizing Beam Splitter," Appl. Opt. 40, 5898-5905 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-32-5898
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