2012 Fiscal Year Final Research Report
Dynamical correlation theory of semiconductor lasers
| Project Area | Optical science of dynamically correlated electrons in semiconductors |
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| Project/Area Number |
20104008
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Osaka University |
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Principal Investigator |
OGAWA Tetsuo 大阪大学, 大学院・理学研究科, 教授 (50211123)
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| Project Period (FY) |
2008 – 2012
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| Keywords | 半導体レーザー / 光物理学 / 動的電子相関 / 量子光学 / 相転移 |
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| Research Abstract |
We have interested in coupled systems between photon fields and electron fields in excited states of semiconductors to construct nonequilibrium optical response theories taking into account the dynamically correlation among excited electrons. We have applied such theories to lasing processes and spontaneous emission processes to understand comprehensively semiconductor lasers. In particular, crossover between cavity-polariton condensates and lasing is successfully clarified, which is a typical phenomenon of the “equilibrium-nonequilibrium crossover,” a long-standing issue in statistical physics. Phase transition of photon states in a coupled cavity array is also studied stressing its potential to applications.
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