Refractive index and orientation profiles of holographic gratings written in liquid crystalline monomers

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Refractive index and orientation profiles for electrically switched holographic gratings, written by photopolymerization of nematic liquid crystalline monomers, have been obtained through computer simulation of experimental diffraction patterns. Simulation of diffraction from the 6 μm, optically thin films produced smooth, nonsinusoidal refractive index profiles. These profiles are consistent with a recording/switching mechanism based upon selective electric field reorientation of the liquid crystal director in the monomeric regions. Quantitative agreement with the model was found, based upon macroscopic birefringence data. Profiles for higher frequency and overexposed gratings provide further insight into the nature of the monomer/ polymer boundaries. Orientation profiles were calculated from the refractive index profiles.

Original languageEnglish (US)
Pages (from-to)9430-9436
Number of pages7
JournalJournal of Physical Chemistry
Volume99
Issue number23
StatePublished - 1995

Fingerprint

Holographic gratings
Crystal orientation
Refractive index
monomers
Monomers
gratings
refractivity
Crystalline materials
Liquids
liquids
profiles
Liquid Crystals
Photopolymerization
Birefringence
Liquid crystals
Diffraction patterns
Polymers
Diffraction
Electric fields
Thin films

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

@article{43e72bf8d55046008812f3ca69ab980e,
title = "Refractive index and orientation profiles of holographic gratings written in liquid crystalline monomers",
abstract = "Refractive index and orientation profiles for electrically switched holographic gratings, written by photopolymerization of nematic liquid crystalline monomers, have been obtained through computer simulation of experimental diffraction patterns. Simulation of diffraction from the 6 μm, optically thin films produced smooth, nonsinusoidal refractive index profiles. These profiles are consistent with a recording/switching mechanism based upon selective electric field reorientation of the liquid crystal director in the monomeric regions. Quantitative agreement with the model was found, based upon macroscopic birefringence data. Profiles for higher frequency and overexposed gratings provide further insight into the nature of the monomer/ polymer boundaries. Orientation profiles were calculated from the refractive index profiles.",
author = "Michael Sponsler",
year = "1995",
language = "English (US)",
volume = "99",
pages = "9430--9436",
journal = "Journal of Physical Chemistry",
issn = "0022-3654",
publisher = "American Chemical Society",
number = "23",

}

TY - JOUR

T1 - Refractive index and orientation profiles of holographic gratings written in liquid crystalline monomers

AU - Sponsler, Michael

PY - 1995

Y1 - 1995

N2 - Refractive index and orientation profiles for electrically switched holographic gratings, written by photopolymerization of nematic liquid crystalline monomers, have been obtained through computer simulation of experimental diffraction patterns. Simulation of diffraction from the 6 μm, optically thin films produced smooth, nonsinusoidal refractive index profiles. These profiles are consistent with a recording/switching mechanism based upon selective electric field reorientation of the liquid crystal director in the monomeric regions. Quantitative agreement with the model was found, based upon macroscopic birefringence data. Profiles for higher frequency and overexposed gratings provide further insight into the nature of the monomer/ polymer boundaries. Orientation profiles were calculated from the refractive index profiles.

AB - Refractive index and orientation profiles for electrically switched holographic gratings, written by photopolymerization of nematic liquid crystalline monomers, have been obtained through computer simulation of experimental diffraction patterns. Simulation of diffraction from the 6 μm, optically thin films produced smooth, nonsinusoidal refractive index profiles. These profiles are consistent with a recording/switching mechanism based upon selective electric field reorientation of the liquid crystal director in the monomeric regions. Quantitative agreement with the model was found, based upon macroscopic birefringence data. Profiles for higher frequency and overexposed gratings provide further insight into the nature of the monomer/ polymer boundaries. Orientation profiles were calculated from the refractive index profiles.

UR - http://www.scopus.com/inward/record.url?scp=0010268808&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0010268808&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0010268808

VL - 99

SP - 9430

EP - 9436

JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

SN - 0022-3654

IS - 23

ER -