Creation Of Sub-Diffraction Optical Needle By Nonlinear Super-Oscillatory Lens

Yihong Zhang,Weihao Zhong,Dongmei Liu,Yong Zhang,Min Xiao

2016 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)（2016）

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摘要

We demonstrate a novel nonlinear optical super-oscillatory lens, i.e. a periodically poled LiTaO3 nonlinear photonic crystal, to create an optical needle with a sub-diffraction beam size of 0.43 lambda(SH) and an ultra-long length of 40 lambda(SH).

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