2009 Fiscal Year Final Research Report
Optical Stark Effect in Quantum Dots for Exciton Confinement Regime
| Project/Area Number |
20740175
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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 |
Condensed matter physics I
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| Research Institution | Osaka University |
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Principal Investigator |
MIYAJIMA Kensuke Osaka University, 大学院・基礎工学研究科, 助教 (20397764)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 光物性 / 量子ドット |
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| Research Abstract |
The purpose of this research is to observe an optical Stark effect in a quantum dots for exciton confinement regime by utilizing a transition between exciton Rydberg states. I measured Rydberg excited states of excitons and biexcitons in CuCl bulk and quantum dots. The excited biexciton state composed of 1s and 2p excitons was observed for the first time for a semiconductor bulk crystal. In addition, the transient absorption energies for the same transition processes in CuCl quantum dots are higher than those in the bulk crystals.
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