Polariton Condensation in Dynamic Acoustic Lattices
Polariton Condensation in Dynamic Acoustic Lattices
复制标题
DOI：
10.1103/physrevlett.105.116402
复制
发表时间：
2010-09-09
影响因子：
8.6
通讯作者：
Skolnick, M. S.
中科院分区：
文献类型：
--
作者：
Cerda-Mendez, E. A.;Krizhanovskii, D. N.;Skolnick, M. S.
我们表明，可调电位引入的表面声波上的均匀极化激元凝聚体导致分裂的凝聚成一个阵列的线移动的声速。沿着表面声波方向的冷凝物发射的空间相干性的减少归因于空间调制冷凝物之间的耦合的抑制。在高极化激元密度下观察到的粒子间相互作用屏蔽了声学势，部分逆转了其对空间相干性的影响。
We demonstrate that the tunable potential introduced by a surface acoustic wave on a homogeneous polariton condensate leads to fragmentation of the condensate into an array of wires which move with the acoustic velocity. Reduction of the spatial coherence of the condensate emission along the surface acoustic wave direction is attributed to the suppression of coupling between the spatially modulated condensates. Interparticle interactions observed at high polariton densities screen the acoustic potential, partially reversing its effect on spatial coherence.