Jin Wentao, Song Meng, Xue Yan Ling, Gao Yuanmei, Zheng Liren
Appl Opt. 2020 Aug 1;59(22):6638-6641. doi: 10.1364/AO.397622.
A convenient method to fabricate two-dimensional photonic quasicrystal microstructures was experimentally demonstrated by using a rotatable four-wedge prism. Two-dimensional eightfold symmetric quasicrystal microstructures are formed by two groups of twisted square lattices in a photorefractive crystal. The experimental devices of this method are simple and stable without complicated optical adjustment equipment. Optical-induced quasicrystal microstructures are analyzed and verified by magnified imaging and far-field diffraction pattern imaging. The method can be extended to fabricate more complex quasicrystal and moiré lattice microstructures. We numerically demonstrate that this method can be used to fabricate other complex photonic microstructures by using different multi-wedge prisms and adjusting the rotation angle properly.
通过使用可旋转的四棱楔棱镜，实验证明了一种制造二维光子准晶体微结构的简便方法。二维八重对称准晶体微结构由光折变晶体中的两组扭曲方形晶格形成。该方法的实验装置简单且稳定，无需复杂的光学调节设备。通过放大成像和远场衍射图案成像对光诱导准晶体微结构进行了分析和验证。该方法可扩展用于制造更复杂的准晶体和莫尔晶格微结构。我们通过数值模拟证明，使用不同的多棱楔棱镜并适当调整旋转角度，该方法可用于制造其他复杂的光子微结构。
