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arXiv 1202.2729cond-mat.mes-hallcond-mat.dis-nnphysics.optics
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随机光子介质中部分非线性互易性对超快动力学的突破

Partial nonlinear reciprocity breaking through ultrafast dynamics in a random photonic medium

Otto L. Muskens, Paul Venn, Timmo van der Beek, Thomas Wellens

摘要:

我们证明了超快非线性动力学在随机光子介质中引起互易破缺。通过抑制相干后向散射观察到互易性破缺,这是光的弱局域化的表现。观察到的效果,在一个泵探测配置,其中泵诱导超快的阶跃变化的折射率在材料中的探测光的停留时间。多重散射蒙特卡罗模拟很好地再现了相干后向散射的动力学抑制。超快倒易破缺为非线性光学介质提供了一种独特的机制,为介观输运、随机激光和光子局域化的主动操纵开辟了途径。

英文摘要:

We demonstrate that ultrafast nonlinear dynamics gives rise to reciprocity breaking in a random photonic medium. Reciprocity breaking is observed via the suppression of coherent backscattering, a manifestation of weak localization of light. The effect is observed in a pump-probe configuration where the pump induces an ultrafast step-change of the refractive index during the dwell time of the probe light in the material. The dynamical suppression of coherent backscattering is reproduced well by a multiple scattering Monte Carlo simulation. Ultrafast reciprocity breaking provides a distinct mechanism in nonlinear optical media which opens up avenues for the active manipulation of mesoscopic transport, random lasers, and photon localization.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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