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arXiv 2011.05462cond-mat.quant-gas
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倾斜极化激元环中自旋极化的动力学

Dynamics of spin polarization in tilted polariton rings

S. Mukherjee, V. K. Kozin, A. V. Nalitov, I. A. Shelykh, Z. Sun, D. M. Myers, B. Ozden, J. Beaumariage, M. Steger, L. N. Pfeiffer, K. West, D. W. Snoke

摘要:

在环形微腔中,我们观察到了由自旋轨道耦合的极化激元模拟(TE $-$ TM分裂)产生的赝磁场对极化激元凝聚体的影响。这种效应产生了一个稳定的四叶图案周围的环从线性偏振测量的冷凝光致发光。这种模式被发现起源于腔势,能量弛豫,和TE-TM分裂的环中的相互作用。我们的观察相比,耗散一维旋量Gross-Pitaevskii方程与TE-TM分裂能量,表现出良好的定性协议。

英文摘要:

We have observed the effect of pseudo magnetic field originating from the polaritonic analog of spin-orbit coupling (TE$-$TM splitting) on a polariton condensate in a ring-shaped microcavity. The effect gives rise to a stable four-leaf pattern around the ring as seen from the linear polarization measurements of the condensate photoluminescence. This pattern is found to originate from the interplay of the cavity potential, energy relaxation, and TE-TM splitting in the ring. Our observations are compared to the dissipative one-dimensional spinor Gross-Pitaevskii equation with the TE-TM splitting energy which shows good qualitative agreement.

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