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Multiplets in the optical emission spectra of large quantum dots in microcavities

机译:微腔中大量子点的光发射光谱中的多重

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We show theoretically that the emission spectrum of a single large quantum dot strongly coupled to a single photon mode in a microcavity can be qualitatively different from the spectrum obtained with an atom in a cavity. Instead of the well-known Mollow triplet we predict appearance of multiplets with the number of peaks a function of the quantum dot size and pumping intensity. The mutiplets can appear if the quantum dot is larger than the exciton Bohr radius, so that excitons are confined as whole particles in the dot. In this case, the Pauli principle is relaxed and one can accommodate more than one exciton (but still a finite number) in a given quantum state. (C) 2005 Elsevier Ltd. All rights reserved.
机译:我们从理论上证明,在微腔中与单个光子模式强耦合的单个大量子点的发射光谱在质量上可能与腔中原子获得的光谱不同。代替众所周知的Mollow三重态,我们预测的是多重态的出现,其峰数是量子点大小和泵浦强度的函数。如果量子点大于激子玻尔半径,则可能会出现多态,因此激子被限制为整个粒子。在这种情况下,保利原理是放宽的,并且在给定的量子态下可以容纳一个以上的激子(但仍然是有限数量)。 (C)2005 Elsevier Ltd.保留所有权利。

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