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arXiv 1107.0372quant-phcond-mat.mes-hall
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单量子点的自发双光子辐射

Spontaneous two photon emission from a single quantum dot

Y. Ota, S. Iwamoto, N. Kumagai, Y. Arakawa

摘要:

观察到了固态单量子发射体的自发双光子发射。研究了高Q值光子晶体纳米腔耦合半导体量子点中中性双激子的光致发光。当腔谐振到双激子的一半能量时,腔中的强真空场激发双激子同时发射两个光子到模式中,导致模式的明显发射增强。同时,从双激子的其他单光子发射的抑制被观察到,作为双光子发射过程变得比其他的共振更快。

英文摘要:

Spontaneous two photon emission from a solid-state single quantum emitter is observed. We investigated photoluminescence from the neutral biexciton in a single semiconductor quantum dot coupled with a high Q photonic crystal nanocavity. When the cavity is resonant to the half energy of the biexciton, the strong vacuum field in the cavity inspires the biexciton to simultaneously emit two photons into the mode, resulting in clear emission enhancement of the mode. Meanwhile, suppression was observed of other single photon emission from the biexciton, as the two photon emission process becomes faster than the others at the resonance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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