Liquid crystals tunable optical metamaterials

Iam Choon Khoo, Andres Diaz, Justin Liou, Michael V. Stinger, Junbin Huang, Yi Ma

Research output: Contribution to journalArticlepeer-review

57 Scopus citations


A critical discussion with detailed calculations for the complex refractive indexes of metamaterials of various nanoconstituent makeups, sizes, shapes and concentrations, and periodic nanostructured patterns/geometry are presented. These metamaterials possess tunable subunity, zero, or negative refractive indexes, on account of the large birefringence of their nematic liquid crystal constituent. We also studied the special case involving laser dye-doped nematic liquid crystals that could provide optical gain. It is shown that the resulting metamaterials loss can be minimized, while achieving the desired tunable birefringence. Some preliminary experimental studies have demonstrated fast optically induced modulation of the nematic liquid crystals and indicated the possibility of ultimately realizing fast tunable or nonlinear optical metamaterials.

Original languageEnglish (US)
Article number5422651
Pages (from-to)410-417
Number of pages8
JournalIEEE Journal on Selected Topics in Quantum Electronics
Issue number2
StatePublished - Mar 2010

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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