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arXiv 0912.3763physics.opticscond-mat.dis-nncond-mat.other
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非线性随机介质中Anderson局域态的双稳性

Bistability of Anderson localized states in nonlinear random media

I. V. Shadrivov, K. Y. Bliokh, Y. P. Bliokh, V. Freilikher, Y. S. Kivshar

摘要:

我们研究了波通过一维随机非线性结构的传输,并预测了一种新的效果,从非线性和无序的相互作用。我们发现,虽然弱非线性不改变典型的指数小传输的安德森局域化的制度,它显着影响的无序诱导的本地化状态激发介质内导致{ \em的}和{ \em nonreciprocal}共振传输。我们的数值模拟显示了一个很好的协议与理论预测的基础上的概念,高Q谐振器与每个本地化状态。这提供了一种新的方法,全光学光控制使用的无规则腔的均匀随机介质。

英文摘要:

We study wave transmission through one-dimensional random nonlinear structures and predict a novel effect resulting from an interplay of nonlinearity and disorder. We reveal that, while weak nonlinearity does not change the typical exponentially small transmission in the regime of the Anderson localization, it affects dramatically the disorder-induced localized states excited inside the medium leading to {\em bistable} and {\em nonreciprocal} resonant transmission. Our numerical modelling shows an excellent agreement with theoretical predictions based on the concept of a high-Q resonator associated with each localized state. This offers a new way of all-optical light control employing statistically-homogeneous random media without regular cavities.

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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