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

Haozhe Xiong, Bingyan Wei, Yuan Zhang, Sheng Liu, Peng Li, Yunlong Wu, Jianlin Zhao

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

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.

Original languageEnglish
Article number1356
JournalCrystals
Volume12
Issue number10
DOIs
StatePublished - Oct 2022

Keywords

  • autofocusing
  • cubic phase modulation
  • optical vortices
  • self-healing

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