Developing New Functionality in Artificial Atoms
| Project/Area Number |
23340084
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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 |
Condensed matter physics I
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
IKEZAWA Michio 筑波大学, 数理物質系, 准教授 (30312797)
TOMIMOTO Shinichi 筑波大学, 数理物質系, 助教 (90396599)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2013: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2012: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2011: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
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| Keywords | 電子スピン / 単光子発生 / 時間分解カー回転 / 等電子トラップ / ZnO / 量子ドット |
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| Research Abstract |
Excitation-intensity-dependent time-resolved Kerr rotation signal was observed in singly electron-doped InP/InGaP quantum dots. The phenomenon was reproduced by density-matrix calculations allowing for the reaction on the quantum dot electron-trion four-level system during its coherent radiation emission. Single photon emission was observed as antibunching from an exciton bound to a single isoelectronic trap in GaAs:N by means of Hanbury-Brown-Twiss intensity correlation measurement. The shortest lifetime of 650ps was observed.
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Report
(4 results)
Research Products
(72 results)
