Open AccessMicro-optical polarizer with high efficiency
Author(s) -
Patrick Ruffieux,
Toralf Scharf,
Hans Peter Herzig
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.002023
Subject(s) - polarizer , optics , liquid crystal , materials science , polarization (electrochemistry) , microlens , refractive index , optical rotation , optoelectronics , birefringence , lens (geology) , physics , chemistry
Based on liquid crystal polymers (LCP) a compact micro-optical polarizer with high efficiency has been designed and realized. By using cylindrical microlens arrays made of LCP and index matching layer, a complete separation of both polarization components of the unpolarized input light is achieved. Combined with a patterned twisted nematic (TN) cell, allowing a rotation of only one polarization component, a polarizer with high efficiency (72,5% (measured) is realized. Simulations and measurements are presented.