| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Modulating the Lasing Performance of the Quantum Dot-Cavity System by Adding a Resonant Driving Field |
| Li-Guo Qin1,2, Qin Wang1,2** |
1Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing 210003
2Key Lab of Broadband Wireless Communication and Sensor Network Technology (Ministry of Education), Nanjing University of Posts and Telecommunications, Nanjing 210003
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| Cite this article: |
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Li-Guo Qin, Qin Wang 2017 Chin. Phys. Lett. 34 017303 |
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Abstract We propose a new scheme on modulating the lasing performance of a quantum dot-cavity system. Compared to the conventional above-band pump, in our new scheme an additional resonant driving field is applied on the quantum dot-cavity system. By employing the master equation theory and the Jaynes–Cummings model, we are able to study the interesting phenomenon of the coupling system. To compare the different behaviors between using our new scheme and the conventional method, we carry out investigation for both the "good system" and "more realistic system", characterizing several important parameters, such as the cavity population, exciton population and the second-order correlation function at zero time delay. Through numerical simulations, we demonstrate that for both the good system and more realistic system, their lasing regimes can be displaced into other regimes in the presence of a resonant driving field.
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Received: 25 September 2016
Published: 29 December 2016
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| PACS: |
73.21.La
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(Quantum dots)
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78.67.Hc
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(Quantum dots)
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42.50.-p
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(Quantum optics)
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42.50.Wk
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(Mechanical effects of light on material media, microstructures and particles)
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| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 11274178, 61475197 and 61590932, the Natural Science Foundation of the Jiangsu Higher Education Institutions under Grant No 15KJA120002, the outstanding Youth Project of Jiangsu Province under Grant No BK20150039, and the Priority Academic Program Development of Jiangsu Higher Education Institutions under Grant No YX002001. |
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