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arXiv 0706.0858cond-mat.mes-hall
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受限激子的双光子相干偏振翻转

Two-photon coherent polarization flipping of confined excitons

P. Machnikowski

摘要:

研究了量子点中两个圆偏振激子态之间相干跃迁的双光子过程。结果表明,光翻转的激子偏振是可能的皮秒激光脉冲。这个过程与双激子的双光子拉比振荡密切相关,但它对激光频率的变化更稳定。

英文摘要:

A two-photon process leading to coherent transitions between the two circularly polarized exciton states in a quantum dot is studied. It is shown that optical flipping of the exciton polarization is possible with picosecond laser pulses. The process is closely related to two-photon Rabi oscillations of a biexciton but it is much more stable against shifts of the laser frequency.

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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