Ultrafast wavelength conversion device by semiconductor multilayer coupled cavity with quantum dots
| Project/Area Number |
24360028
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | The University of Tokushima |
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Principal Investigator |
Isu Toshiro 徳島大学, ソシオテクノサイエンス研究部, 特任教授 (00379546)
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| Co-Investigator(Kenkyū-buntansha) |
KITADA TAKAHIRO 徳島大学, 大学院ソシオテクノサイエンス研究部, 特任准教授 (90283738)
KUMAGAI NAOTO 徳島大学, 大学院ソシオテクノサイエンス研究部, 特任講師 (40732152)
LU XIANGMENG 徳島大学, 大学院ソシオテクノサイエンス研究部, 特任助教 (80708800)
MORITA KEN 千葉大学, 工学研究科, 准教授 (30448344)
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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 |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2015: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2012: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
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| Keywords | 量子ドット / 微小共振器 / 超高速光スイッチ / 非線形光学応答 / キャリア緩和 / MBE,エピタキシャル成長 / 化合物半導体多層膜 / 波長変換 / 超高速全光スイッチ / 微笑共振器 |
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| Outline of Final Research Achievements |
In order to realize an ultrafast wavelength-conversion device, we investigated nonlinear responses of a semiconductor multi-layer triple-coupled cavity with quantum dots (QDs) and crystal growth of the structure. We obtained ultrafast nonlinear transmission change of a cavity with the Er-doped quantum dots embedded in a thin strain-relaxed layer. We also found that the wavelength conversion signal by the four-wave-mixing was absorbed in the QDs, although degenerate four-wave-mixing signals were clearly observed due to saturable absorption. In the case of a triple-coupled cavity with QDs which were transparent for the incident lights, wavelength conversion signals were clearly observed. We confirmed that the triple-coupled cavity structure with QDs was promising for application to ultrafast wavelength-conversion devices.
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Report
(5 results)
Research Products
(42 results)
