Parametric amplification and polariton liquids in semiconductor microcavities
Parametric amplification and polariton liquids in semiconductor microcavities
复制标题
半导体微腔中的参量放大和极化子液体
DOI：
10.1002/pssb.200560960
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
P. Lagoudakis
中科院分区：
文献类型：
--
作者：
J. Baumberg;P. Lagoudakis
半导体微腔中的参量放大提供了一个例子，其中激子的交换相互作用产生的非线性光学相互作用变得如此之大，极化激元的多重散射变得重要。在这里，我们回顾了在许多不同的几何结构中极化激元相互作用的时间分辨观测，包括在魔角或极化激元陷阱底部的泵浦。极化激元色散被大量人口多次占据的情况会产生依赖于k的能量位移，动态地修改色散，这种情况我们称之为强相互作用的“极化激元液体”。（© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA，魏因海姆）
Parametric amplification in semiconductor microcavities provides an example in which nonlinear optical interactions produced by the exchange interaction of excitons become so large that multiple scattering of polaritons becomes important. Here we review time‐resolved observations of the polariton interactions in a number of different geometries including pumping at either the magic angle, or the bottom of the polariton trap. Situations in which the polariton dispersion is multiply occupied by large populations give rise to k‐dependent energy shifts, modifying the dispersion dynamically, a situation we term the strongly‐interacting ‘polariton liquid’. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)