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 LiTaO 3 nonlinear photonic crystal, to create an optical needle with a sub-diffraction beam size of 0.43λ SH and an ultra-long length of 40λ SH .

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关键词

sub-diffraction optical needle,nonlinear optical super-oscillatory lens,periodically poled lithium niobate nonlinear photonic crystal,sub-diffraction beam size,LiNbO3

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