Non-diffracting and non-attenuating vortex light beams in media with nonlinear absorption of orbital angular momentum

Abstract

We show that a high-order Bessel beam propagating in a medium with nonlinear absorption is not completely absorbed, but survives in the form of a new propagation invariant vortex beam in which the beam energy and orbital angular momentum are permanently transferred to matter and at the same time refueled by spiral inward currents of energy and angular momentum. Unlike vortex solitons and dissipative vortex solitons, these vortex beams are not supported by specific dispersive nonlinearities (self-focusing or self-defocusing) and do not require gain. Propagation invariance in presence of multiple absorption of photons carrying (possibly high) orbital angular momentum makes these beams attractive for optical pumping of angular momentum over long distances.

References in corpus (3)

• Stable Vortex Solitons in Nonlocal Self-Focusing Nonlinear Media
• Non-linear unbalanced Bessel beams: Stationary conical waves supported by nonlinear losses
• Rotating vortex solitons supported by localized gain

Cited by in corpus (7)

• Multidimensional dissipative solitons and solitary vortices
• Underlying conservation and stability laws in nonlinear propagation of axicon-generated Bessel beams
• On the dynamics of Airy beams in nonlinear media with nonlinear losses
• Stabilization of vortex beams in Kerr media by nonlinear absorption
• Rotating azimuthons in dissipative Kerr media excited by superpositions of Bessel beams
• Optical vortex trapping and annihilation by means of nonlinear Bessel beams in nonlinearly absorbing media
• Stationary and stable light beam propagation in Kerr media with nonlinear absorption with controllable dissipation patterns