+-Photorefractive CdSe and gold nanowire-doped liquid crystals and polymer-dispersed-liquid-crystal photonic crystals

I. C. Khoo; Yana Zhang Williams; B. Lewis; T. Mallouk

doi:10.1080/15421400500377610

+-Photorefractive CdSe and gold nanowire-doped liquid crystals and polymer-dispersed-liquid-crystal photonic crystals

I. C. Khoo
, Yana Zhang Williams
, B. Lewis
, T. Mallouk

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

We have observed enhanced photorefractive responses in CdSe doped nematic liquid crystal cells. The effective intensity dependent refractive index coefficients are on the order of 10 -2 cm 2 /Watt. Using polymer-dispersed mixture of these NLC, 3-D photonic crystals are fabricated by short-exposure direct holographic optical illumination. The resultant structure exhibits 3-D photonic crystal Bragg diffraction and multi-color reflections that can be electronically switched at millisecond speed. Enhanced diffraction efficiency is obtained by doping the liquid crystal with gold nanowires.

Original language	English (US)
Pages (from-to)	233-244
Number of pages	12
Journal	Molecular Crystals and Liquid Crystals
Volume	446
DOIs	https://doi.org/10.1080/15421400500377610
State	Published - 2006

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics

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title = "+-Photorefractive CdSe and gold nanowire-doped liquid crystals and polymer-dispersed-liquid-crystal photonic crystals",

abstract = "We have observed enhanced photorefractive responses in CdSe doped nematic liquid crystal cells. The effective intensity dependent refractive index coefficients are on the order of 10 -2 cm 2 /Watt. Using polymer-dispersed mixture of these NLC, 3-D photonic crystals are fabricated by short-exposure direct holographic optical illumination. The resultant structure exhibits 3-D photonic crystal Bragg diffraction and multi-color reflections that can be electronically switched at millisecond speed. Enhanced diffraction efficiency is obtained by doping the liquid crystal with gold nanowires.",

author = "Khoo, \{I. C.\} and Williams, \{Yana Zhang\} and B. Lewis and T. Mallouk",

note = "Funding Information: This work is supported by the Army Research Office and the Air Force and the NSF-MRSEC Center for Nanoscale Science under grant number DMR-0213623. We acknowledge technical assistance by K. Chen and Jay-Hong Park.",

year = "2006",

doi = "10.1080/15421400500377610",

language = "English (US)",

volume = "446",

pages = "233--244",

journal = "Molecular Crystals and Liquid Crystals",

issn = "1542-1406",

publisher = "Taylor and Francis Ltd.",

}

TY - JOUR

T1 - +-Photorefractive CdSe and gold nanowire-doped liquid crystals and polymer-dispersed-liquid-crystal photonic crystals

AU - Khoo, I. C.

AU - Williams, Yana Zhang

AU - Lewis, B.

AU - Mallouk, T.

N1 - Funding Information: This work is supported by the Army Research Office and the Air Force and the NSF-MRSEC Center for Nanoscale Science under grant number DMR-0213623. We acknowledge technical assistance by K. Chen and Jay-Hong Park.

PY - 2006

Y1 - 2006

N2 - We have observed enhanced photorefractive responses in CdSe doped nematic liquid crystal cells. The effective intensity dependent refractive index coefficients are on the order of 10 -2 cm 2 /Watt. Using polymer-dispersed mixture of these NLC, 3-D photonic crystals are fabricated by short-exposure direct holographic optical illumination. The resultant structure exhibits 3-D photonic crystal Bragg diffraction and multi-color reflections that can be electronically switched at millisecond speed. Enhanced diffraction efficiency is obtained by doping the liquid crystal with gold nanowires.

AB - We have observed enhanced photorefractive responses in CdSe doped nematic liquid crystal cells. The effective intensity dependent refractive index coefficients are on the order of 10 -2 cm 2 /Watt. Using polymer-dispersed mixture of these NLC, 3-D photonic crystals are fabricated by short-exposure direct holographic optical illumination. The resultant structure exhibits 3-D photonic crystal Bragg diffraction and multi-color reflections that can be electronically switched at millisecond speed. Enhanced diffraction efficiency is obtained by doping the liquid crystal with gold nanowires.

UR - https://www.scopus.com/pages/publications/32944460494

UR - https://www.scopus.com/pages/publications/32944460494#tab=citedBy

U2 - 10.1080/15421400500377610

DO - 10.1080/15421400500377610

M3 - Article

AN - SCOPUS:32944460494

SN - 1542-1406

VL - 446

SP - 233

EP - 244

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

ER -

+-Photorefractive CdSe and gold nanowire-doped liquid crystals and polymer-dispersed-liquid-crystal photonic crystals

Abstract

All Science Journal Classification (ASJC) codes

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