Theoretical study of a quantum dot microcavity laser

Guangcun Shan; Shuying Bao

doi:10.1117/12.725218

11 January 2007 Theoretical study of a quantum dot microcavity laser

Guangcun Shan, Shuying Bao

Proceedings Volume 6279, 27th International Congress on High-Speed Photography and Photonics; 627925 (2007) https://doi.org/10.1117/12.725218
Event: 27th International congress on High-Speed Photography and Photonics, 2006, Xi'an, China

Abstract

Here we theoretically investigate a new laser device structure model based on a single semiconductor quantum dot (QD) gain emitter, where the lasing occurs through discrete conduction states. A single QD is selectively placed in a high quality microcavity, called a microdisk, which is resonant with an intersublevel QD transition. The quantitative results of fully quantum-mechanical treatment here show that, when adjusting the QD-cavity coupling parameters to be appropriate values, the microcavity coupling mode would lead to a very high photon intensity of the single QD microcavity laser. The QD-cavity coupling interaction is modeled in the strong-coupling regime, and we conclude that the present QD microcavity system itself can serve as a new novel terahertz laser with low threshold.

Citation Download Citation

Guangcun Shan and Shuying Bao "Theoretical study of a quantum dot microcavity laser", Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 627925 (11 January 2007); https://doi.org/10.1117/12.725218

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