Area scalable optically induced photorefractive photonic microstructures
Area scalable optically induced photorefractive photonic microstructures
复制标题
面积可扩展的光致光折变光子微结构
DOI：
10.1016/j.optmat.2016.03.052
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发表时间：
2016
影响因子：
3.9
通讯作者：
Jiang Dongdong
中科院分区：
文献类型：
--
作者：
Jin Wentao;Xue Yan Ling;Jiang Dongdong
实验证明了一种利用多面光楔制造区域可扩展二维光子微结构的简便方法。该方法紧凑稳定，无需复杂的光学对准设备。在掺铁铌酸锂光折变晶体内部，光学诱导出大面积的方晶格微结构。通过平面波引导、布里渊区光谱、角度相关透射谱和侧向布拉格反射图对诱导的大面积微结构进行了分析和验证。通过适当地设计多面光楔，该方法可以很容易地扩展到生成其他更复杂的区域可扩展光子微结构，如准晶格。这种诱导面积可扩展的光子微结构可以在光折变晶体中被固定或擦除甚至重新记录，这在微纳光子器件中具有潜在的应用前景。
A convenient approach to fabricate area scalable two-dimensional photonic microstructures was experimentally demonstrated by multi-face optical wedges. The approach is quite compact and stable without complex optical alignment equipment. Large-area square lattice microstructures are optically induced inside an iron-doped lithium niobate photorefractive crystal. The induced large-area microstructures are analyzed and verified by plane wave guiding, Brillouin-zone spectroscopy, angle-dependent transmission spectrum, and lateral Bragg reflection patterns. The method can be easily extended to generate other more complex area scalable photonic microstructures, such as quasicrystal lattices, by designing the multi-face optical wedge appropriately. The induced area scalable photonic microstructures can be fixed or erased even re-recorded in the photorefractive crystal, which suggests potential applications in micro-nano photonic devices.