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Band-edge and random lasing in paintable liquid crystal emulsions

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  • P. J. W. Hands
  • D. J. Gardiner
  • S. M. Morris
  • C. Mowatt
  • T. D. Wilkinson
  • H. J. Coles

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http://apl.aip.org/resource/1/applab/v98/i14/p141102_s1
Original languageEnglish
Article number141102
Pages (from-to)-
Number of pages3
JournalApplied Physics Letters
Volume98
Issue number14
DOIs
Publication statusPublished - 4 Apr 2011

Abstract

Lasing mechanisms within paintable dye-doped chiral liquid crystal emulsions are investigated. Evidence shows that by variation in liquid crystal droplet size, by simple control of mechanical mixing speeds, a change in the lasing mechanism from band-edge lasing (large droplets) to diffuse nonresonant random lasing (small droplets) can be facilitated. This approach represents a facile technique for the variation in lasing mechanism, within a self-organizing, flexible, and conformable system, and offers the opportunity of developing controllable linewidth laser sources.

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