Nano-dispersed organic liquid and liquid crystals for all-time-scales optical switching and tunable negative-and zero- index materials

I. C. Khoo, A. Diaz, S. Kubo, J. Liou, Mike Stinger, T. Mallouk, J. H. Park

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

We present an overview of recent results obtained in nano-dispersed nonlinear neat organic liquids and liquid crystals. Experimental observations confirm the enhancement of nonlinear absorption in gold nano-spheres doped neat nonlinear liquids and extension of the bandwidth of efficient all-optical switching operation for visible-near infrared lasers in time scales ranging from sub-picoseconds through nanoseconds and microseconds and longer. Similar nano-particulate doped liquid crystal films also exhibit efficient all-optical switching capabilities for microseconds - cw lasers. Meta-materials fabricated with core-shell nano-spheres dispersed nematic liquid crystals show effective refractive indices that are tunable from negative through zero to positive values.

Original languageEnglish (US)
Pages (from-to)934-944
Number of pages11
JournalMolecular crystals and liquid crystals
Volume485
DOIs
StatePublished - 2008

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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