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Two-dimensional diffractive optical element based fabrication of 3D photonic crystal templates

机译:基于二维衍射光学元件的3D光子晶体模板

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Recently, two-dimensional and three-dimensional periodic dielectric structures have been directly fabricated by laser holographic lithography to create novel geometric structures with high-precision tolerances. Multiple beam interference via beam splitting mirrors or diffractive optical elements produce iso-intensity contours that can be accurately recorded in photoresist and subsequently used as a template for creating photonic crystals with a complete or partial bandgap. We demonstrate single laser exposure method of forming three-dimensional photonic crystal templates in photoresist with multi-layer two-dimensional diffractive optical elements. Several photonic stopbands are identified in the near-infrared spectrum along multiple crystallographic directions.
机译:最近,通过激光全息光刻直接制造二维和三维周期性介电结构,以产生具有高精度公差的新型几何结构。 通过光束分离镜或衍射光学元件的多个光束干涉产生可以精确地记录在光致抗蚀剂中的异形强度轮廓,然后用作用于产生具有完整或部分带隙的光子晶体的模板。 我们展示了具有多层二维衍射光学元件的光致抗蚀剂中形成三维光子晶体模板的单激光曝光方法。 沿多个晶形方向在近红外光谱中识别了几个光子阻带。

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