Reflective ring projector from liquid crystal polymer dispersion films

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We report a liquid crystal polymer dispersion (LCPD) device that, under laser irradiation, a reflective ring pattern is observed. The observed ring pattern is due to the Quételet scattering light interference. Clusters of the polymer network and liquid crystal (LC) domains with various director axes serve as scatterers in the LCPD films. Changes in the first-order ring intensity are probed using a linearly polarized laser beam. Experimental results reveal that the scattering light interference ring pattern is different from that of the Fraunhofer diffraction ring pattern. The first-order ring intensity of the scattering light interference peaks if the polarization of the probe beam is parallel to the director axis of the LC molecules. The applied voltage, the order parameter and the configurations of the LCs are shown to influence the ring intensity and the polarization.

Original languageEnglish
Pages (from-to)305-311
Number of pages7
JournalOptics Communications
Volume216
Issue number4-6
DOIs
Publication statusPublished - 2003 Feb 15

Fingerprint

Light interference
Liquid crystal polymers
projectors
Liquid Crystals
liquid crystals
Scattering
Liquid crystals
rings
polymers
Polarization
Laser beam effects
light scattering
Laser beams
interference
Polymers
Diffraction
Molecules
Electric potential
polarization
liquid crystal polymer

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

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title = "Reflective ring projector from liquid crystal polymer dispersion films",
abstract = "We report a liquid crystal polymer dispersion (LCPD) device that, under laser irradiation, a reflective ring pattern is observed. The observed ring pattern is due to the Qu{\'e}telet scattering light interference. Clusters of the polymer network and liquid crystal (LC) domains with various director axes serve as scatterers in the LCPD films. Changes in the first-order ring intensity are probed using a linearly polarized laser beam. Experimental results reveal that the scattering light interference ring pattern is different from that of the Fraunhofer diffraction ring pattern. The first-order ring intensity of the scattering light interference peaks if the polarization of the probe beam is parallel to the director axis of the LC molecules. The applied voltage, the order parameter and the configurations of the LCs are shown to influence the ring intensity and the polarization.",
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Reflective ring projector from liquid crystal polymer dispersion films. / Huang, Chi Yen.

In: Optics Communications, Vol. 216, No. 4-6, 15.02.2003, p. 305-311.

Research output: Contribution to journalArticle

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AU - Huang, Chi Yen

PY - 2003/2/15

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N2 - We report a liquid crystal polymer dispersion (LCPD) device that, under laser irradiation, a reflective ring pattern is observed. The observed ring pattern is due to the Quételet scattering light interference. Clusters of the polymer network and liquid crystal (LC) domains with various director axes serve as scatterers in the LCPD films. Changes in the first-order ring intensity are probed using a linearly polarized laser beam. Experimental results reveal that the scattering light interference ring pattern is different from that of the Fraunhofer diffraction ring pattern. The first-order ring intensity of the scattering light interference peaks if the polarization of the probe beam is parallel to the director axis of the LC molecules. The applied voltage, the order parameter and the configurations of the LCs are shown to influence the ring intensity and the polarization.

AB - We report a liquid crystal polymer dispersion (LCPD) device that, under laser irradiation, a reflective ring pattern is observed. The observed ring pattern is due to the Quételet scattering light interference. Clusters of the polymer network and liquid crystal (LC) domains with various director axes serve as scatterers in the LCPD films. Changes in the first-order ring intensity are probed using a linearly polarized laser beam. Experimental results reveal that the scattering light interference ring pattern is different from that of the Fraunhofer diffraction ring pattern. The first-order ring intensity of the scattering light interference peaks if the polarization of the probe beam is parallel to the director axis of the LC molecules. The applied voltage, the order parameter and the configurations of the LCs are shown to influence the ring intensity and the polarization.

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