Reanalysis of experimental determinations of polariton-polariton interactions in microcavities

Reanalysis of experimental determinations of polariton-polariton interactions in microcavities
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微腔中极化子-极化子相互作用实验测定的重新分析

DOI:
10.1103/physrevb.107.165302
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发表时间:
2023
期刊:
影响因子:
3.7
通讯作者:
Pfeiffer, L. N.
Pfeiffer, L. N.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Snoke, D. W.;Hartwell, V.;Beaumariage, J.;Mukherjee, S.;Yoon, Y.;Myers, D. M.;Steger, M.;Sun, Z.;Nelson, K. A.;Pfeiffer, L. N.

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极化子-极化子相互作用强度是利用极化子非线性特性的各种应用的重要参数,例如光开关和单光子封锁器件。在本文中,我们回顾和比较了微腔极化子结构中极化子-极化子相互作用的一系列实验结果,并对这些实验进行了更新的分析。我们表明,不仅谱线的能量偏移,而且对极化子散射率敏感的测量结果对于低激发密度下相互作用参数的校准也很重要。我们发现,当进行调整以纠正最近对实验的理解时,低密度下相互作用参数的值低于之前报告的值,但仍然显着高于理论预测。
The polariton-polariton interaction strength is an important parameter for all kinds of applications using the nonlinear properties of polaritons, such as optical switching and single-photon blockade devices. In this paper, we review and compare the results of a series of experiments on polariton-polariton interactions inmicrocavity polariton structures and present an updated analysis of these experiments. We show that not just the energy shift of the spectral lines but also the results of measurements sensitive to the polariton scattering rate are important for the calibration of the interaction parameter at low excitation density. We find that when adjustments are made to correct for recent understanding of the experiments, the value of the interaction parameter at low density is lower than previous reported, but still significantly higher than theoretically predicted.
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