Behavior of Director Orientation near Interface of Nematic Liquid-Crystal Cell Evaluated Using Shear Horizontal Wave Propagation
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- Moritake Hiroshi
- Department of Electrical and Electronic Engineering, National Defense Academy
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- Kim Jaeki
- Department of Electrical and Electronic Engineering, National Defense Academy
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- Yoshino Katsumi
- Department of Electronic Engineering, Graduate School of Engineering, Osaka University
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- Toda Kohji
- Department of Electrical and Electronic Engineering, National Defense Academy
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Abstract
The nematic liquid-crystal director orientation in the vicinity of a glass plate is investigated in relation to the acoustic phase delay change of a shear horizontal (SH) wave propagating in a cell structure. The relationships between the phase delay change and the electric field applied to the liquid-crystal layer are given for various layer thicknesses of the liquid-crystal layer, comparing with the penetration depth of the mechanical displacement. The phase-velocity change of the SH wave observed upon applying an electric field is related to the change of the liquid-crystal director angle near the interface with the glass plate, which is independent of the thickness of the liquid-crystal layer. The decay time of the director reorientation under application and removal of applied voltage is nearly independent of the applied electric field and the thickness of the liquid-crystal layer. The present method using an SH wave propagating in the liquid-crystal cell is favorable for estimating the liquid-crystal director orientation in the region very near the substrate glass.
Journal
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 44 (6B), 4316-4321, 2005
The Japan Society of Applied Physics
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Keywords
Details 詳細情報について
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- CRID
- 1390282681242348544
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- NII Article ID
- 10016583934
- 210000058197
- 130004534218
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- NII Book ID
- AA10457675
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- ISSN
- 13474065
- 00214922
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- NDL BIB ID
- 7348354
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed