PlumX Metrics
Embed PlumX Metrics

Continuous Goos-Hänchen Shift of Vortex Beam via Symmetric Metal-Cladding Waveguide

Materials, ISSN: 1996-1944, Vol: 15, Issue: 12
2022
  • 4
    Citations
  • 0
    Usage
  • 1
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

Article Description

Goos-Hänchen shift provides a way to manipulate the transverse shift of an optical beam with sub-wavelength accuracy. Among various enhancement schemes, millimeter-scale shift at near-infrared range has been realized by a simple symmetrical metal-cladding waveguide structure owing to its unique ultrahigh-order modes. However, the interpretation of the shift depends crucially on its definition. This paper shows that the shift of a Gaussian beam is discrete if we follow the light peak based on the stationary phase approach, where the M-lines are fixed to specific directions and the beam profile is separated near resonance. On the contrary, continuous shift can be obtained if the waveguide is illuminated by a vortex beam, and the physical cause can be attributed to the position-dependent phase-match condition of the ultrahigh-order modes due to the spatial phase distribution.

Bibliographic Details

Kan, Xue Fen; Zou, Zhi Xin; Yin, Cheng; Xu, Hui Ping; Wang, Xian Ping; Han, Qing Bang; Cao, Zhuang Qi

MDPI AG

Materials Science; Physics and Astronomy

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know