Photorefractivity in ferroelectric liquid crystals

Gary P. Wiederrecht, Michael R Wasielewski, Michael Fuller

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The first observation of photorefractivity in ferroelectric liquid crystals (flcs) is reported. The flcs are doped with the easily oxidized chromophore perylene, which also functions as the sensitizer. The electron acceptor di-butyl-pyromellitimide is added to induce photoconductivity through an efficient intermolecular electron transfer reaction to produce mobile ions. A strong dependence on the orientation of the wavevector of the optical interference pattern and polarization of the writing beams relative to the orientation of the flc molecules is observed. The results are interpreted as an orientational photorefractive effect in which the net polarization of the flc couples linearly to the space-charge field as opposed to nematic liquid crystals in which the dielectric anisotropy couples to the square of the space charge field.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages104-109
Number of pages6
Volume4104
DOIs
Publication statusPublished - 2000
EventOrganic Photorefractives, Photoreceptors, and Nanocomposites - San Diego, CA, USA
Duration: Jul 31 2000Aug 1 2000

Other

OtherOrganic Photorefractives, Photoreceptors, and Nanocomposites
CitySan Diego, CA, USA
Period7/31/008/1/00

Fingerprint

photorefractivity
Liquid crystals
Ferroelectric materials
liquid crystals
Electric space charge
Polarization
space charge
Light interference
Electrons
Nematic liquid crystals
Photoconductivity
Chromophores
Crystal orientation
polarization
Anisotropy
photoconductivity
chromophores
electron transfer
Molecules
Ions

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Wiederrecht, G. P., Wasielewski, M. R., & Fuller, M. (2000). Photorefractivity in ferroelectric liquid crystals. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4104, pp. 104-109). Society of Photo-Optical Instrumentation Engineers. https://doi.org/10.1117/12.406473

Photorefractivity in ferroelectric liquid crystals. / Wiederrecht, Gary P.; Wasielewski, Michael R; Fuller, Michael.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4104 Society of Photo-Optical Instrumentation Engineers, 2000. p. 104-109.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wiederrecht, GP, Wasielewski, MR & Fuller, M 2000, Photorefractivity in ferroelectric liquid crystals. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 4104, Society of Photo-Optical Instrumentation Engineers, pp. 104-109, Organic Photorefractives, Photoreceptors, and Nanocomposites, San Diego, CA, USA, 7/31/00. https://doi.org/10.1117/12.406473
Wiederrecht GP, Wasielewski MR, Fuller M. Photorefractivity in ferroelectric liquid crystals. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4104. Society of Photo-Optical Instrumentation Engineers. 2000. p. 104-109 https://doi.org/10.1117/12.406473
Wiederrecht, Gary P. ; Wasielewski, Michael R ; Fuller, Michael. / Photorefractivity in ferroelectric liquid crystals. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4104 Society of Photo-Optical Instrumentation Engineers, 2000. pp. 104-109
@inproceedings{0b45bd18760941e29e061f1c2d029488,
title = "Photorefractivity in ferroelectric liquid crystals",
abstract = "The first observation of photorefractivity in ferroelectric liquid crystals (flcs) is reported. The flcs are doped with the easily oxidized chromophore perylene, which also functions as the sensitizer. The electron acceptor di-butyl-pyromellitimide is added to induce photoconductivity through an efficient intermolecular electron transfer reaction to produce mobile ions. A strong dependence on the orientation of the wavevector of the optical interference pattern and polarization of the writing beams relative to the orientation of the flc molecules is observed. The results are interpreted as an orientational photorefractive effect in which the net polarization of the flc couples linearly to the space-charge field as opposed to nematic liquid crystals in which the dielectric anisotropy couples to the square of the space charge field.",
author = "Wiederrecht, {Gary P.} and Wasielewski, {Michael R} and Michael Fuller",
year = "2000",
doi = "10.1117/12.406473",
language = "English",
volume = "4104",
pages = "104--109",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "Society of Photo-Optical Instrumentation Engineers",

}

TY - GEN

T1 - Photorefractivity in ferroelectric liquid crystals

AU - Wiederrecht, Gary P.

AU - Wasielewski, Michael R

AU - Fuller, Michael

PY - 2000

Y1 - 2000

N2 - The first observation of photorefractivity in ferroelectric liquid crystals (flcs) is reported. The flcs are doped with the easily oxidized chromophore perylene, which also functions as the sensitizer. The electron acceptor di-butyl-pyromellitimide is added to induce photoconductivity through an efficient intermolecular electron transfer reaction to produce mobile ions. A strong dependence on the orientation of the wavevector of the optical interference pattern and polarization of the writing beams relative to the orientation of the flc molecules is observed. The results are interpreted as an orientational photorefractive effect in which the net polarization of the flc couples linearly to the space-charge field as opposed to nematic liquid crystals in which the dielectric anisotropy couples to the square of the space charge field.

AB - The first observation of photorefractivity in ferroelectric liquid crystals (flcs) is reported. The flcs are doped with the easily oxidized chromophore perylene, which also functions as the sensitizer. The electron acceptor di-butyl-pyromellitimide is added to induce photoconductivity through an efficient intermolecular electron transfer reaction to produce mobile ions. A strong dependence on the orientation of the wavevector of the optical interference pattern and polarization of the writing beams relative to the orientation of the flc molecules is observed. The results are interpreted as an orientational photorefractive effect in which the net polarization of the flc couples linearly to the space-charge field as opposed to nematic liquid crystals in which the dielectric anisotropy couples to the square of the space charge field.

UR - http://www.scopus.com/inward/record.url?scp=0034497449&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034497449&partnerID=8YFLogxK

U2 - 10.1117/12.406473

DO - 10.1117/12.406473

M3 - Conference contribution

AN - SCOPUS:0034497449

VL - 4104

SP - 104

EP - 109

BT - Proceedings of SPIE - The International Society for Optical Engineering

PB - Society of Photo-Optical Instrumentation Engineers

ER -