Research and development of ultra-high speed and low-driving voltage spatial light modulators
| Project/Area Number |
24560427
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Chubu University |
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Principal Investigator |
WAKITA KOICHI 中部大学, 生命健康科学部, 教授 (20301640)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAHASHI Makoto 中部大学, 工学部, 教授 (10236317)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 高速 / 低電圧駆動 / 室温励起子吸収 / 高純度 / 厚い空乏層 / 電気吸収効果 / 電気光学効果 / 空間光変調器 / 低電圧 / 電界吸収変化 / 電界屈折率変化 / 光強度変調 / 低消費電力 / 高速動作 / 高消光比 / 屈折率制御 / 波面制御 / 並列処理 / 励起子吸収 / フランツ・ケルデッシュ効果 / 空間光変調 |
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| Outline of Final Research Achievements |
For realizing the ultra-high speed and ultra-parallel optical processing, ultra-high purity GaAs epitaxial layers have been grown by liquid-phase epitaxy and clear exciton absorption and its large red-shift associated with applied voltage have been observed at room temperature. Large on-off ratio larger than 20dB by less than 10 V and subnano sec responce have been demonstrated and estimated. These data overcome reported data (1000V and a few msec response) and indicate the possibility of next generation spatial light modulator (SLM) in place of liquid crystal SLMs and magnetic resistance SLMs.
A large refractive index change (about 2 times larger than reported data) associated with observed large electroabsorption has been estimated based on the Kramers- Kroenig relation-ship.
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Report
(5 results)
Research Products
(27 results)
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[Journal Article] Improved Photovoltaic Properties of Heterojunction Carbon Based Solar Cell2013
Author(s)
Sudip Adhikari, M. S. Kayastha, D.C. Ghimire, H. R. Aryal, S. Adhikary, T. Takeuchi, K. Murakami, Y, Kawashimo, H. Uchida, K. Wakita, M. Umeno
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Journal Title
Journal of Surface Engineered Materials and Advanced Technology
Volume: 3
Pages: 178-183
Related Report
Peer Reviewed
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