arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1209.2349physics.opticscond-mat.otherquant-ph
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PT对称Talbot效应

PT-Symmetric Talbot Effects

Hamidreza Ramezani, D. N. Christodoulides, V. Kovanis, I. Vitebskiy, Tsampikos Kottos

摘要:

我们发现,复杂的PT对称光子晶格可以导致一类新的自成像塔尔博特效应。为了实现这一点,我们发现输入场的模式,必须尊重特定的周期性,这是由系统的对称性决定的。而在自发的PT对称性破缺点,图像复兴发生在由被动晶格的特性所支配的Talbot长度处,在确切的相位处,它取决于增益和损耗参数,从而允许控制成像过程。

英文摘要:

We show that complex PT-symmetric photonic lattices can lead to a new class of self-imaging Talbot effects. For this to occur, we find that the input field pattern, has to respect specific periodicities which are dictated by the symmetries of the system. While at the spontaneous PT-symmetry breaking point, the image revivals occur at Talbot lengths governed by the characteristics of the passive lattice, at the exact phase it depends on the gain and loss parameter thus allowing one to control the imaging process.

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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