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arXiv 2401.09341quant-phcond-mat.other
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嵌入光子微腔中的两个量子点内的协同双光子激射

Cooperative two-photon lasing in two Quantum Dots embedded inside Photonic microcavity

Lavakumar Addepalli, P. K. Pathak

AI总结:

本文提出在耦合单模光子晶体腔的两个量子点中实现协同双光子激射,利用极化子变换主方程和量子激光理论分析单光子与双光子过量发射,并指出通过调节泵浦强度可抑制单光子发射。

摘要:

我们提出了耦合到单模光子晶体腔的两个量子点中的协同双光子激射。我们考虑两个量子点由外部泵浦进行非相干或相干驱动。我们利用极化子变换主方程纳入激子-声子耦合。利用量子激光理论,研究了进入腔模的单光子和多光子过量发射(发射与吸收之差)。单光子和双光子过量发射主要贡献于腔光子。改变泵浦强度可以导致单光子过量发射从负变为正,因此通过适当选择泵浦强度,可以使单光子过量发射变得可忽略。

英文摘要:

We propose cooperative two-photon lasing in two quantum dots coupled to a single mode photonic crystal cavity. We consider both quantum dots are driven either incoherently or coherently using external pump. We incorporate exciton-phonon coupling using polaron transformed master equation. Using quantum laser theory, single and multi-photon excess emission (difference between emission and absorption) into cavity mode are investigated. The single and two-photon excess emission contribute to cavity photons, predominantly. Varying the pump strength can lead to single-photon excess emission change from negative to positive and thus by appropriately selecting pump strength single-photon excess emission can be made negligible.

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