Guiding ultraslow weak-light bullets with Airy beams in a coherent atomic system

Abstract

We investigate the possibility of guiding stable ultraslow weak-light bullets by using Airy beams in a cold, lifetime-broadened four-level atomic system via electromagnetically induced transparency (EIT). We show that under EIT condition the light bullet with ultraslow propagating velocity and extremely low generation power formed by the balance between diffraction and nonlinearity in the probe field can be not only stabilized but also steered by the assisted field. In particular, when the assisted field is taken to be an Airy beam, the light bullet can be trapped into the main lobe of the Airy beam, propagate ultraslowly in longitudinal direction, accelerate in transverse directions, and move along a parabolic trajectory. We further show that the light bullet can bypass an obstacle when guided by two sequential Airy beams. A technique for generating ultraslow helical weak-light bullets is also proposed.

arXiv comment23 pages, 6 figures

References in corpus (15)

• Solitons in nonlinear lattices
• Plasmonic Airy Beam on Metal Surface
• Spontaneously generated X-shaped light bullets
• Three-Dimensional Light Bullets in Arrays of Waveguides
• Stable spatiotemporal solitons in Bessel optical lattices
• Turning light into a liquid via atomic coherence
• Fully three dimensional breather solitons can be created using Feshbach resonance
• Accessible Light Bullets via synergetic nonlinearities
• A Stern-Gerlach experiment for slow light
• Weak-Light Ultraslow Vector Optical Solitons via Electromagnetically Induced Transparency
• Spatiotemporally Localized Multidimensional Solitons in Self-Induced Transparency Media
• Light bullets in quadratic media with normal dispersion at the second harmonic
• Stern-Gerlach Effect of Weak-Light Ultraslow Vector Solitons
• Three-dimensional gap solitons in Bose-Einstein condensates supported by one-dimensional optical lattices
• Ultraslow Helical Optical Bullets and Their Acceleration in Magneto-Optically Controlled Coherent Atomic Media

Cited by in corpus (5)

• Three-dimensional solitary waves with electrically tunable direction of propagation in nematics
• Interaction of Airy-Gaussian beams in defected photonic lattices
• Electromagnetically induced transparency for guided light in an atomic array outside an optical nanofiber
• The interaction of Airy waves and solitons in the three-wave system
• Light gap bullets in defocusing media with optical lattices