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

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 vort...

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Bibliographic Details
Published in:Crystals (Basel) 2022-10, Vol.12 (10), p.1356
Main Authors: Xiong, Haozhe, Wei, Bingyan, Zhang, Yuan, Liu, Sheng, Li, Peng, Wu, Yunlong, Zhao, Jianlin
Format: Article
Language:English
Subjects:
autofocusing
Circular polarization
cubic phase modulation
Design
Glass substrates
Helicity
Optical properties
optical vortices
Phase modulation
Propagation
self-healing
Simulation methods
Vortices
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Summary: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.
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst12101356