Applied Physics B

, Volume 101, Issue 1, pp 245–252

Optical and electro-optical properties of photonic crystals based on polymer-dispersed liquid crystals

Authors

  • M.-S. Li
    • Institute of Electro-Optical Science and EngineeringNational Cheng Kung University
  • S.-Y. Huang
    • Institute of Electro-Optical Science and EngineeringNational Cheng Kung University
  • S.-T. Wu
    • Department of PhysicsNational Cheng Kung University
  • H.-C. Lin
    • Department of PhysicsNational Cheng Kung University
    • Institute of Electro-Optical Science and EngineeringNational Cheng Kung University
    • Department of PhysicsNational Cheng Kung University
Article

DOI: 10.1007/s00340-010-4110-y

Cite this article as:
Li, M., Huang, S., Wu, S. et al. Appl. Phys. B (2010) 101: 245. doi:10.1007/s00340-010-4110-y
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Abstract

Two-dimensional (2-D) square lattice (SL) photonic crystals (PCs) are fabricated, and their optical/electro-optical properties are studied. The PCs are based on polymer-dispersed liquid crystals (PDLC) that are formed using two-beam interference with double exposures. The PC structure that is observed using a scanning electron microscope matches with the calculated interference pattern. The results of optical/electro-optical studies demonstrate that superprism and negative refraction effects occur at certain incident angles over a range of frequencies and are consistent with the simulated ones. Moreover, the negative refraction efficiency is electrically controllable.

Copyright information

© Springer-Verlag 2010