| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Correlation of Exciton and Biexciton from a Single InAs Quantum Dot |
| LI Yu-Long, CHEN Geng, TANG Jian-Shun, LI Chuan-Feng** |
| Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026 |
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| Cite this article: |
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LI Yu-Long, CHEN Geng, TANG Jian-Shun et al 2012 Chin. Phys. Lett. 29 094201 |
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Abstract The peaks of exciton and biexciton from the single quantum dot (QD) micro-photoluminescence spectra are identified by observing the intensity of those peaks in relation to increasing excitation power. In order to further verify the properties of the exciton and biexciton, we perform auto- and cross correlation measurements. Using the former, we confirm the antibunching property of the signal light emitted from the single QD. Using cross correlation measurement, we verify that the exciton and biexciton emissions originate from the same QD and they are strongly correlated with each other. Lastly, we analyze the behavior of the cross correlation function in both the cases of saturated and unsaturated excitation of the QD.
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Received: 01 April 2012
Published: 01 October 2012
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| PACS: |
42.50.Dv
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(Quantum state engineering and measurements)
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78.67.Hc
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(Quantum dots)
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78.55.-m
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(Photoluminescence, properties and materials)
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