2009 Fiscal Year Final Research Report
Development of self-assembled quantum dot lasers in lattice-matched GaAs/AlGaAs system
| Project/Area Number |
20760207
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
MANO Takaaki National Institute for Materials Science, 量子ドットセンター, 主任研究員 (60391215)
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| Research Collaborator |
KURODA Takashi 独立行政法人物質・材料研究機構, 量子ドットセンター, 主幹研究員 (00272659)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 薄膜 / 量子構造 / 量子ドット / 結晶成長 / 半導体レーザ |
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| Research Abstract |
We investigated and optimized droplet epitaxial quantum dot formation for their application to quantum dot lasers. We developed droplet epitaxy on GaAs (311)A surfaces and realized QDs with high density and high uniformity. Moreover, by optimizing the annealing processes, the optical qualities of QDs were improved drastically. As a result, optical pumped laser emission at room temperature was achieved.
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