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Self‐Assembled Silica Photonic Crystal as a Liquid‐Crystal Alignment Layer and its Electro‐optic Applications in Fabry–Perot Cavity Structures
Author(s) -
Ha N. Y.,
Woo Y. K.,
Park B.,
Takezoe H.,
Wu J. W.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200400743
Subject(s) - materials science , rubbing , liquid crystal , fabry–pérot interferometer , layer (electronics) , optics , photonic crystal , optoelectronics , nanotechnology , composite material , wavelength , physics
Microgrooves on self‐assembled photonic‐crystal (PC) films align liquid crystals (LCs) without any additional rubbing or surface treatment. Nematic (see Figure and inside cover) or twisted‐nematic LCs can be formed, depending on the relative orientation of the microgrooved films. A LC Fabry–Perot (FP) cavity was fabricated using these PC films, and electro‐optic tuning of FP cavity modes is demonstrated.