| Project/Area Number |
14550036
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
ONO Hiroshi Nagaoka University of Technology, Department of Electrical Engineering, Associate Professor, 工学部, 助教授 (10283029)
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| Project Period (FY) |
2002 – 2003
|
| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2003: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2002: ¥2,800,000 (Direct Cost: ¥2,800,000)
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| Keywords | Liquid crystal / Polymer / Hologram / Grating device / Fourier transform / Image processing / Polarization / Photocroaslink / 回折 / フォトリフラクティ / フーリエ変換光学系 |
|---|
| Research Abstract |
A control of a molecular orientation of polymer materials is of great interest for an optical storage, highly functionalized optical device, birefringent film etc. By the use of a linearly polarized light and interference light, refractive index change is induced in liquid crystalline media. In this study, the alignment of liquid crystalline molecules has been photo-controlled and the micron-and nano-size patterns have been generated. The principle of the research results are summarized as followed.
(1)Spatial-selective reconstruction in photorefractive liquid crystal composites by means of real-time holographic technique.
(2)Image inversion in dye-doped liquid crystals by means of nonlinear Fourier transformation optical system.
(3)Highly efficient photorefractive effects in photorefractive liquid crystal/polymer composites.
(4)All-optical focal length converter generated in dye-doped liquid crystals.
(5)Polarization holographic gratings in photo-cross-linkable polymer liquid crystals and polarization conversion in the gratings.
These results suggest that the light-control of the molecular reorientation is very useful for the photonics applications.
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