Physical Review Letters
Four-Wave Mixing Dipole Soliton in Laser-Induced Atomic Gratings
Yanpeng Zhang, Zhiguo Wang, Zhiqiang Nie, Changbiao Li, Haixia Chen, Keqing Lu, Min Xiao
Abstract
We demonstrate a novel type of stable multicomponent vector solitons consisting of two perpendicular four-wave mixing (FWM) dipole components induced by electromagnetically induced gratings. We analyze the formation and steering of the steady dipole solitons and their dynamical (energy transfer) effects. The dipole-mode solitons of two FWM processes have horizontal and vertical orientations, respectively. Omnidirectional Bragg reflections are also investigated.