Title

Broadband wide-angle polarization converter for LCD backlight

Authors

Authors

C. C. Tsai;S. T. Wu

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Appl. Optics

Keywords

SURFACE-RELIEF GRATINGS; COUPLED-WAVE ANALYSIS; CONVERSION; IMPLEMENTATION; REFLECTION; EXCITATION; PLASMONS; REGION; Optics

Abstract

A novel polarization converter using reflective metallic gratings and a polarization beam splitter is introduced for LCD backlight illumination. These two optical elements form a polarization rotation resonator. Broadband and high optical efficiency of polarization conversion in the visible region is achieved through the resonance of the refracted light and the surface plasmon wave in metallic surface-relief gratings. For wide-angle illumination, the conversion efficiency with arbitrary incident angle is studied. This device can convert unpolarized light to linear polarization with over 85% efficiency. (c) 2008 Optical Society of America.

Journal Title

Applied Optics

Volume

47

Issue/Number

15

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

2882

Last Page

2887

WOS Identifier

WOS:000256691500018

ISSN

1559-128X

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