Dynamics of photoalignment in azo-dye-doped liquid crystals

Chia Yi Huang; Yi Ru Lin; Kuang Yao Lo; Chia Rong Lee

doi:10.1063/1.3021379

Dynamics of photoalignment in azo-dye-doped liquid crystals

Chia Yi Huang, Yi Ru Lin, Kuang Yao Lo, Chia Rong Lee

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

21 Citations (Scopus)

Abstract

A transmitted light without analyzer was led into the pump-probe twist nematic experiment in azo-dye-doped liquid crystals to observe the light scattering from the dye-adsorbed surface during photoalignment. The morphology of the dye-absorbed surface monitored by this transmitted light is correlated with the formation of the ripple structure, which is reflected by the anchoring of the dye-adsorbed layer, which is, in turn, revealed by measuring the surface director reorientation angle throughout the process. As the regular ripple structure is gradually formed, the Rayleigh scattering is transferred to the Mie scattering since the scale of the ripple structure is at the wavelength.

Original language	English
Article number	181114
Journal	Applied Physics Letters
Volume	93
Issue number	18
DOIs	https://doi.org/10.1063/1.3021379
Publication status	Published - 2008

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.3021379

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title = "Dynamics of photoalignment in azo-dye-doped liquid crystals",

abstract = "A transmitted light without analyzer was led into the pump-probe twist nematic experiment in azo-dye-doped liquid crystals to observe the light scattering from the dye-adsorbed surface during photoalignment. The morphology of the dye-absorbed surface monitored by this transmitted light is correlated with the formation of the ripple structure, which is reflected by the anchoring of the dye-adsorbed layer, which is, in turn, revealed by measuring the surface director reorientation angle throughout the process. As the regular ripple structure is gradually formed, the Rayleigh scattering is transferred to the Mie scattering since the scale of the ripple structure is at the wavelength.",

author = "Huang, {Chia Yi} and Lin, {Yi Ru} and Lo, {Kuang Yao} and Lee, {Chia Rong}",

note = "Funding Information: The authors would like to thank the National Science Council of the Republic of China, Taiwan, for financially supporting this research under Contract No. NSC96-2112-M-415-004-MY3.",

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AU - Huang, Chia Yi

AU - Lin, Yi Ru

AU - Lo, Kuang Yao

AU - Lee, Chia Rong

N1 - Funding Information: The authors would like to thank the National Science Council of the Republic of China, Taiwan, for financially supporting this research under Contract No. NSC96-2112-M-415-004-MY3.

PY - 2008

Y1 - 2008

N2 - A transmitted light without analyzer was led into the pump-probe twist nematic experiment in azo-dye-doped liquid crystals to observe the light scattering from the dye-adsorbed surface during photoalignment. The morphology of the dye-absorbed surface monitored by this transmitted light is correlated with the formation of the ripple structure, which is reflected by the anchoring of the dye-adsorbed layer, which is, in turn, revealed by measuring the surface director reorientation angle throughout the process. As the regular ripple structure is gradually formed, the Rayleigh scattering is transferred to the Mie scattering since the scale of the ripple structure is at the wavelength.

AB - A transmitted light without analyzer was led into the pump-probe twist nematic experiment in azo-dye-doped liquid crystals to observe the light scattering from the dye-adsorbed surface during photoalignment. The morphology of the dye-absorbed surface monitored by this transmitted light is correlated with the formation of the ripple structure, which is reflected by the anchoring of the dye-adsorbed layer, which is, in turn, revealed by measuring the surface director reorientation angle throughout the process. As the regular ripple structure is gradually formed, the Rayleigh scattering is transferred to the Mie scattering since the scale of the ripple structure is at the wavelength.

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Dynamics of photoalignment in azo-dye-doped liquid crystals

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