Quantum fluid effects and parametric instabilities in microcavities
Quantum fluid effects and parametric instabilities in microcavities
复制标题
DOI：
10.1002/pssb.200560961
复制
发表时间：
2005-09-01
影响因子：
1.6
通讯作者：
Carusotto, I
中科院分区：
文献类型：
--
作者：
Ciuti, C;Carusotto, I
本文描述了近共振连续波泵浦激光注入微腔极化激元流体的非平衡性质。在第一部分中，我们指出了Bogoliubov类极化激元激发的特殊色散和极化激元参数不稳定性之间的相互作用。我们展示了如何集体激发光谱没有对应的平衡系统可以观察到通过调整激发角和频率。在第二部分中，我们解释了这些集体激发对极化激元流体的面内传播的影响。我们表明，由人工或自然缺陷引起的共振瑞利散射是一个非常敏感的工具，以揭示新的迷人的效果，如极化激元超流性或显示切伦科夫效应的新方面。我们提出了一套全面的预测远场和近场图像的共振瑞利散射发射。(c)2005 WILEY-VCH Verlag GmbH & Co. KGaA，魏因海姆。
We present a description of the non-equilibrium properties of a microcavity polariton fluid, injected by a nearly-resonant continuous wave pump laser. In the first part, we point out the interplay between the peculiar dispersion of the Bogoliubov-like polariton excitations and the onset of polariton parametric instabilities. We show how collective excitation spectra having no counterpart in equilibrium systems can be observed by tuning the excitation angle and frequency. In the second part, we explain the impact of these collective excitations on the in-plane propagation of the polariton fluid. We show that the resonant Rayleigh scattering induced by artificial or natural defects is a very sensitive tool to reveal novel fascinating effects such as polariton superfluidity or to show new aspects of the Cherenkov effect. We present a comprehensive set of predicted far-field and near-field images for the resonant Rayleigh scattering emission. (c) 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.