Ultrahigh-contrast and wideband nanoscale photonic crystal all-optical diode
Ultrahigh-contrast and wideband nanoscale photonic crystal all-optical diode
复制标题
超高对比度宽带纳米级光子晶体全光二极管
DOI：
10.1364/ol.36.004668
复制
发表时间：
2011-12-01
期刊：
影响因子：
3.6
通讯作者：
Gong, Qihuang
中科院分区：
文献类型：
--
作者：
Lu, Cuicui;Hu, Xiaoyong;Gong, Qihuang
我们通过实验实现了具有破缺空间反演对称性的光子晶体异质结构的纳米级全光二极管，其性能与光学非线性无关。其物理机制在于光子晶体独特的色散关系和入射光在不同的电磁布洛赫模式之间的跃迁。同时实现了103阶的超高透射对比度、大于50nm的大工作带宽和小于10kW/cm(2)的超低光子强度。(C) 2011美国光学学会
We experimentally realize a nanoscale all-optical diode in a photonic crystal heterostructure with broken spatial inversion symmetry, performing independent of optical nonlinearity. The physical mechanism lies in unique dispersion relations of the photonic crystal and the transition of incident light between different electromagnetic Bloch modes. An ultrahigh transmission contrast of 103 order, a large operating bandwidth of over 50nm, and an ultralow photon intensity of less than 10kW/cm(2) are reached simultaneously. (C) 2011 Optical Society of America