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Polarization Talbot self-imaging with computer-generated, space-variant subwavelength dielectric gratings

机译:偏振Talbot自成像与计算机生成的,空间变化的亚波长电介质光栅

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摘要

Self-imaging of a periodic space-variant polarized field is demonstrated. The field is created by use of space-variant subwavelength dielectric gratings. Our observations include self-imaging of the fields at the Talbot planes as well as the translation of incident polarization variation into intensity modulation at certain planes. We demonstrate the formation of a one-dimensional nondiffracting beam with uniform intensity and a nontrivial polarization structure.
机译:演示了周期性空间变化极化场的自成像。该场是通过使用时变亚波长电介质光栅创建的。我们的观察结果包括在Talbot平面上对场进行自我成像,以及在某些平面上将入射偏振变化转换为强度调制。我们证明了具有均匀强度和非平凡偏振结构的一维非衍射光束的形成。

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