Broadband wide-angle polarization converter for LCD backlight

    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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