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Evolution of anomalous vortex beam with different polarization states from conical diffraction to birefringence

QIAN WANG1, LANLING LAN1, YAN LIU1,* , XIAOTAO SHI2,*

Affiliation

  1. College of Science, China Three Gorges University, Yichang Hubei 443002 , China
  2. Hubei I nternational Science and Technology Cooperation Base of Fish Passage, China Three Gorges University, Yichang, Hubei 443002, China

Abstract

In order to discuss the evolution of anomalous vortex beams with different polarization states from conical diffraction to birefringence, the influences of the propagation distance and propagation direction of the incident beam on the propagation characteristics are analyzed based on the conical diffraction theory. The conical diffraction characteristics of elliptical anomalou s vortex beams with different azimuth is also demonstrated. The results show the field intensity distribution of the circularly polarized anomalous vortex beam is more sensitive to the inclination factor than the circularly polarized Gaussian beam during t he evolution from conical diffraction to birefringence. The light intensity distribution properties of elliptically polarized light is between circularly polarized and linearly polarized light. W hen an elliptically polarized beam passes through a biaxial c rystal , the light field changes with the phase difference between the two perpendicular linearly polarized light of elliptically polarized light. It has application prospect in optical capture..

Keywords

Conical diffraction, Biaxial crystal, Polarization, Birefringence, Anomalous vortex beam.

Citation

QIAN WANG, LANLING LAN, YAN LIU, XIAOTAO SHI, Evolution of anomalous vortex beam with different polarization states from conical diffraction to birefringence, Optoelectronics and Advanced Materials - Rapid Communications, 14, 11-12, November-December 2020, pp.473-481 (2020).

Submitted at: July 6, 2020

Accepted at: Nov. 25, 2020