Autofocusing and Self-Healing Optical Vortices Realized via Circular Cubic Phase Modulation

被引：1

作者：

Xiong, Haozhe ^{[1
,2
]}

Wei, Bingyan ^{[1
,2
]}

Zhang, Yuan ^{[3
]}

Liu, Sheng ^{[1
,2
]}

Li, Peng ^{[1
,2
]}

Wu, Yunlong ^{[4
]}

Zhao, Jianlin ^{[1
,2
]}

机构：

[1] Northwestern Polytech Univ, Sch Phys Sci & Technol, MOE Key Lab Mat Phys & Chem Extraordinary Condit, Xian 710129, Peoples R China

[2] Northwestern Polytech Univ, Sch Phys Sci & Technol, Shaanxi Key Lab Opt Informat Technol, Xian 710129, Peoples R China

[3] Chinese Flight Test Estab, Xian 710089, Peoples R China

[4] Natl Univ Def Technol, Adv Laser Technol Lab Anhui Prov, Hefei 230037, Peoples R China

来源：

CRYSTALS | 2022年 / 12卷 / 10期

基金：

中国国家自然科学基金;

关键词：

optical vortices; cubic phase modulation; autofocusing; self-healing; ORBITAL-ANGULAR-MOMENTUM; AIRY BEAMS; STIMULATED-EMISSION; VECTOR BEAMS; VORTEX; GENERATION; PROPAGATION; ARBITRARY;

D O I：

10.3390/cryst12101356

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Optical vortices have drawn extensive research interests due to their widespread applications in various fields. Therefore, it is of great significance to modulate optical vortices to endow them with more properties. Herein, the autofocusing and self-healing properties are introduced to optical vortices via implementing circular cubic phase modulation. The propagation dynamics of the modulated optical vortex is analyzed, and the experimental results match well with the simulations. Moreover, the autodefocusing optical vortices can also be generated, and the flexible switching between the autofocusing state and autodefocusing state can be easily realized by adjusting the helicity of the incident circular polarization. Besides, the topological charges of the two states are also experimentally verified. Our study provides a novel way to modulate optical vortices, which may enrich their applications in optics and photonics.

引用

页数：9

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