2010 Fiscal Year Final Research Report
Development of thermo-driven light controllable device using liquid crystal composites
| Project/Area Number |
20560342
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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 |
Electron device/Electronic equipment
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| Research Institution | Takamatsu National College of Technology |
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Principal Investigator |
OGIWARA Akifumi Takamatsu National College of Technology, 電子工学科, 教授 (00342569)
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| Co-Investigator(Kenkyū-buntansha) |
ONO Hiroshi 長岡技術科学大学, 電気系, 教授 (10283029)
KAKIUCHIDA Hiroshi 独立行政法人産業技術総合研究所, サステナブルマテリアル研究部門, 研究員 (40343660)
YOSHIMURA Kazuki 独立行政法人産業技術総合研究所, サステナブルマテリアル研究部門, 研究グループ長 (50358347)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 光デバイス / 光回路 / 省エネルギー |
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| Research Abstract |
A microperiodic structure composed of polymer and liquid crystal (LC) composite materials was fabricated by a photo-induced phase separation technique. The fabricated device showed high diffraction efficiency more than 80% at green laser wavelength (532nm). The diffraction properties in the device have successfully changed with the threshold temperature depending on the nematic-to-isotropic (N-I) phase transition around 35℃. The different device structure enabled the shift of light controlled ranges of wavelength from the visible ranges (400-600nm) to near-infrared ranges (700-800nm).
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