Nonlinear optics, active plasmonics and metamaterials with liquid crystals

Research output: Contribution to journalReview article

81 Citations (Scopus)

Abstract

Nematic liquid crystals possess large and versatile optical nonlinearities suitable for photonics applications spanning the femtoseconds to milliseconds time scales, and across a wide spectral window. We present a comprehensive review of the physical properties and mechanisms that underlie these multiple time scales nonlinearities, delving into individual molecular electronic responses as well as collective ordered-phase dynamical processes. Several exemplary theoretical formalisms and feasibility demonstrations of ultrafast all-optical transmission switching and tunable metamaterials and plasmonic photonic structures where the liquid crystal constituents play the critical role of enabling the processes are discussed. Emphasis is placed on all-optical processes, but we have also highlighted cases where electro-optical means could provide additional control, flexibility and enhancement possibility. We also point out how another phase of chiral nematic, namely, Blue-Phase liquid crystals could circumvent some of the limitations of nematic and present new possibilities.

Original languageEnglish (US)
Pages (from-to)77-117
Number of pages41
JournalProgress in Quantum Electronics
Volume38
Issue number2
DOIs
StatePublished - Jan 1 2014

Fingerprint

Liquid Crystals
Nonlinear optics
Metamaterials
nonlinear optics
Liquid crystals
Photonics
liquid crystals
Molecular electronics
Nematic liquid crystals
Light transmission
nonlinearity
photonics
Demonstrations
Physical properties
molecular electronics
flexibility
physical properties
augmentation

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

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Nonlinear optics, active plasmonics and metamaterials with liquid crystals. / Khoo, Iam-choon.

In: Progress in Quantum Electronics, Vol. 38, No. 2, 01.01.2014, p. 77-117.

Research output: Contribution to journalReview article

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