首页> 外文期刊>Photonics and Nanostructures: Fundamentals and Applications >Bypassing and cutting through ID photonic crystals by ultra-shallow wet-etched resonant gratings
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Bypassing and cutting through ID photonic crystals by ultra-shallow wet-etched resonant gratings

机译:通过超浅湿蚀刻谐振光栅绕过ID光子晶体并对其进行切割

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摘要

The electromagnetic field in subwavelength resonant diffractive optical elements is so concentrated that a very shallow surface corrugation obtained by wet chemical micro-nano-etching is sufficient to give rise to high contrast diffraction effects allowing a high wavelength-, polarization- or transverse-mode-selectivity which is not achievable by conventional diffractive elements. Two examples of polarizing laser mirrors at both extremes of the optical spectrum with wet-etched grating bypassing and cutting through the 1D photonic crystal are demonstrated.
机译:亚波长谐振衍射光学元件中的电磁场是如此集中,以至于通过湿化学微纳米蚀刻获得的非常浅的表面波纹足以产生高对比度的衍射效应,从而允许具有高波长,偏振或横向模式。常规衍射元件无法实现的选择性。展示了在两个光谱极端情况下偏振激光镜的两个示例,其中湿法刻蚀的光栅绕过并切穿了一维光子晶体。

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