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High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
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Vector vortex solitons in nematic liquid crystals.

Zhiyong Xu1, Noel F Smyth, Antonmaria A Minzoni

  • 1Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200, Australia. xzy124@physics.anu.edu.au

Optics Letters
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Summary
This summary is machine-generated.

We found that nonlocal nonlinear response stabilizes vortex solitons in nematic liquid crystals. This occurs when a second beam

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Area of Science:

  • Nonlinear optics
  • Liquid crystal physics
  • Beam propagation

Background:

  • Two-component vector solitons are crucial in nonlinear optics.
  • Vortex beams carry orbital angular momentum, enabling advanced optical applications.
  • Nematic liquid crystals exhibit unique nonlinear optical properties.

Purpose of the Study:

  • To analyze the existence and stability of two-component vector solitons in nematic liquid crystals.
  • To investigate the role of a vortex beam component in soliton dynamics.
  • To understand how nonlocal nonlinear response affects soliton stability.

Main Methods:

  • Theoretical analysis of two-component vector solitons.
  • Incorporation of angular momentum for a vortex beam component.
  • Development of a variational approach for analytical description.

Main Results:

  • Demonstrated stabilization of vortex solitons through enhanced field coupling.
  • Identified a threshold amplitude for the second beam to induce stabilization.
  • Showcased the significant impact of nonlocal nonlinear response.

Conclusions:

  • Nonlocal nonlinear response is key to stabilizing vortex solitons in nematic liquid crystals.
  • The amplitude of the second beam critically influences vortex soliton stability.
  • Variational methods provide an effective analytical framework for these complex optical phenomena.