Polariton-polariton interaction potentials determination by pump-probe degenerate scattering in a multiple microcavity
Polariton-polariton interaction potentials determination by pump-probe degenerate scattering in a multiple microcavity
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通过多微腔中泵浦探针简并散射测定极化子-极化子相互作用势
DOI：
10.1103/physrevb.89.155308
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发表时间：
2014
影响因子：
3.7
通讯作者：
P. Roussignol
中科院分区：
文献类型：
--
作者：
T. Lecomte;D. Taj;A. Lemaître;J. Bloch;C. Delalande;J. Tignon;P. Roussignol
我们通过其对微腔 (MC) 中参量散射过程的影响来研究偏振相关的极化子-极化子相互作用。反圆相互作用强度 V2 与其同圆相互作用强度 V1 的比率涉及定义 MC 中出现许多非线性过程的状态，例如参数转换或凝聚。我们使用多 MC 中的受激能量简并参数散射过程来测量 V2/V1 比率。以法向入射泵浦样品，以非零角度探测，并以相反角度观察相位匹配的惰轮。将惰轮在功率和偏振方面的行为与哈密顿相互作用模型进行比较，该模型考虑了以 V1 和 V2 为特征的两个依赖于偏振的参数散射通道。所提出的测量比值V2/V1的方法方便且精确。三重 MC 的灵活性允许在大范围的失谐范围内观察该过程并测量该比率，我们发现它高度依赖于失谐。这些测量补充了 Vladimirova 等人之前的研究。 [物理。 Rev. B 82, 075301 (2010)] 采用原始方法并用于迄今为止尚未探索的失谐。
We study the polarisation-dependent polariton-polariton interaction through its effect on a parametric scattering process in a microcavity (MC). The ratio of the anti-circular interaction strength V2 over its co-circular counterpart V1 is involved in defining the regime in which many nonlinear processes arise in MCs, such as parametric conversion or condensation. We measure the ratio V2/V1 using a stimulated energy-degenerate parametric scattering process in a multiple MC. The sample is pumped at normal incidence, probed with a non-zero angle, and the phase-matched idler is observed at the opposite angle. The idler behaviour, both in power and polarisation, is compared to a hamiltonian interaction model that takes into account the two polarisation-dependent parametric scattering channels characterized by V1 and V2. The proposed method to measure the ratio V2/V1 is convenient and precise. The flexibility of the triple MC allows to observe the process and measure this ratio over a large range of detunings, where we find it to be highly dependent on the detuning. These measurements complement the previous study of Vladimirova et al. [Phys. Rev. B 82, 075301 (2010)] with an original approach and for detunings that were unexplored up to now.
影响因子：
8.6
作者：
Debojit Sarkar;S. Gavrilov;M. Sich;J. H. Quilter;R. Bradley;N. Gippius;K. Guda;V. Kulakovskii;M. S. Skolnick;D. Krizhanovskii
通讯作者：
Debojit Sarkar;S. Gavrilov;M. Sich;J. H. Quilter;R. Bradley;N. Gippius;K. Guda;V. Kulakovskii;M. S. Skolnick;D. Krizhanovskii