Controlling electronic and optical properties in semiconductor quantum structures using surface acoustic waves
| Project/Area Number |
20360038
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied physics, general
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| Research Institution | Hokkaido University |
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Principal Investigator |
MATSUDA Osamu 北海道大学, 大学院・工学研究院, 准教授 (30239024)
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| Co-Investigator(Kenkyū-buntansha) |
WRIGHT Oliver 北海道大学, 大学院・工学研究院, 教授 (90281790)
TOMODA Motonobu 北海道大学, 大学院・工学研究院, 助教 (30344485)
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| Project Period (FY) |
2008 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2011: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2010: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2009: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2008: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
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| Keywords | 半導体量子井戸 / フォトルミネッセンス / 表面音響波 / キャリア輸送 / 超高速分光 / イメージング / 圧電性 / 励起子 / 音 / 電子励起状態制御 |
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| Research Abstract |
We aimed to transfer the excitons and to control their life time in semiconductor samples using the surface acoustic waves generated by the ultrashort light pulse absorption. For this purpose, we developed an experimental technique which allows the time resolved two-dimensional imaging of the GHz surface acoustic wave propagation and the two-dimensional imaging of the photoluminescence at the same region of the sample at low temperature (10K). Connecting to this, we also developed a heterodyne technique which use the modulated light for both excitation and probing light. We also developed an analyzing method for the strain components using the polarization of the probing light.
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Report
(6 results)
Research Products
(19 results)
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[Presentation] the photoelastic effect2010
Author(s)
O. Matsuda, T. Saito, M. Tomoda, and O. B. Wright
Organizer
2nd International Symposium on Laser Ultrasonics
Place of Presentation
Universite Bordeaux 1, Talence (France)
Year and Date
2010-07-07
Related Report
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