Quételet-type interference from liquid crystal polymer dispersion films

Chi Yen Huang, Chi Huang Lin, Andy Ying Guey Fuh, Ming Shann Tsai

Research output: Contribution to journalConference article

Abstract

The Quételet-type ring pattern is observed in liquid crystal polymer dispersion (LCPD) films. The clusters of the polymer network and LC domains with different director axes in the LCPD films serve as scatterers. Changes in the first-order ring intensity are probed with a linearly polarized laser beam. Experimental results show that the first-order ring intensity of the Quételet-type interference peaks when the polarization of the probe beam is parallel to the director axis of the LC molecules. Also, it is shown that the number of the scatterers, the order parameter of the liquid crystals and the applied electric field affect the ring intensities. A simple model is proposed to explain these observations.

Original languageEnglish
Pages (from-to)569/[2705]-578/[2714]
JournalMolecular Crystals and Liquid Crystals
Volume413
DOIs
Publication statusPublished - 2004 Dec 1
EventProceedings of the 19th International Liquid Crystal Conference, ILCC2002 - Edinburgh, United Kingdom
Duration: 2002 Jun 302002 Jul 5

Fingerprint

Liquid crystal polymers
liquid crystals
interference
Liquid Crystals
rings
polymers
Liquid crystals
Laser beams
Polymers
Electric fields
Polarization
Molecules
scattering
laser beams
electric fields
liquid crystal polymer
probes
polarization
molecules

All Science Journal Classification (ASJC) codes

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

Cite this

Huang, Chi Yen ; Lin, Chi Huang ; Fuh, Andy Ying Guey ; Tsai, Ming Shann. / Quételet-type interference from liquid crystal polymer dispersion films. In: Molecular Crystals and Liquid Crystals. 2004 ; Vol. 413. pp. 569/[2705]-578/[2714].
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abstract = "The Qu{\'e}telet-type ring pattern is observed in liquid crystal polymer dispersion (LCPD) films. The clusters of the polymer network and LC domains with different director axes in the LCPD films serve as scatterers. Changes in the first-order ring intensity are probed with a linearly polarized laser beam. Experimental results show that the first-order ring intensity of the Qu{\'e}telet-type interference peaks when the polarization of the probe beam is parallel to the director axis of the LC molecules. Also, it is shown that the number of the scatterers, the order parameter of the liquid crystals and the applied electric field affect the ring intensities. A simple model is proposed to explain these observations.",
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Quételet-type interference from liquid crystal polymer dispersion films. / Huang, Chi Yen; Lin, Chi Huang; Fuh, Andy Ying Guey; Tsai, Ming Shann.

In: Molecular Crystals and Liquid Crystals, Vol. 413, 01.12.2004, p. 569/[2705]-578/[2714].

Research output: Contribution to journalConference article

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T1 - Quételet-type interference from liquid crystal polymer dispersion films

AU - Huang, Chi Yen

AU - Lin, Chi Huang

AU - Fuh, Andy Ying Guey

AU - Tsai, Ming Shann

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Y1 - 2004/12/1

N2 - The Quételet-type ring pattern is observed in liquid crystal polymer dispersion (LCPD) films. The clusters of the polymer network and LC domains with different director axes in the LCPD films serve as scatterers. Changes in the first-order ring intensity are probed with a linearly polarized laser beam. Experimental results show that the first-order ring intensity of the Quételet-type interference peaks when the polarization of the probe beam is parallel to the director axis of the LC molecules. Also, it is shown that the number of the scatterers, the order parameter of the liquid crystals and the applied electric field affect the ring intensities. A simple model is proposed to explain these observations.

AB - The Quételet-type ring pattern is observed in liquid crystal polymer dispersion (LCPD) films. The clusters of the polymer network and LC domains with different director axes in the LCPD films serve as scatterers. Changes in the first-order ring intensity are probed with a linearly polarized laser beam. Experimental results show that the first-order ring intensity of the Quételet-type interference peaks when the polarization of the probe beam is parallel to the director axis of the LC molecules. Also, it is shown that the number of the scatterers, the order parameter of the liquid crystals and the applied electric field affect the ring intensities. A simple model is proposed to explain these observations.

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