Asymmetric light propagation in transverse separation modulated photonic lattices.
Asymmetric light propagation in transverse separation modulated photonic lattices.
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DOI：
10.1364/ol.38.003212
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发表时间：
2013-09
期刊：
影响因子：
3.6
通讯作者：
Zheng Cao;X. Qi;Guoquan Zhang;J. Bai
中科院分区：
文献类型：
--
作者：
Zheng Cao;X. Qi;Guoquan Zhang;J. Bai
本文从理论和数值两方面研究了光在横向分离调制光子晶格中的非对称传输。理论结果表明，该结构的透射对比度η仅由啁啾晶格与两个边界均匀晶格部分之间的耦合强度决定。数值研究表明，η与啁啾晶格的分离调制函数无关，这与理论结果是一致的。
We investigate, both theoretically and numerically, the asymmetric light propagation in transverse separation modulated photonic lattices. The theoretical results show that the transmission contrast η of the structure is determined only by the coupling strengths between the chirped lattice and the two boundary uniform lattice portions. The numerical studies demonstrate that η is independent of the separation modulation function of the chirped lattice, which is in good agreement with the theory.