Acceleration control of Airy beams with optically induced refractive-index gradient

Abstract

We demonstrate both experimentally and theoretically controlled acceleration of one- and two-dimensional Airy beams in optically induced refractive-index potentials. Enhancement as well as reduction of beam acceleration are realized by changing the index gradient, while the beam shape is maintained during propagation through the linear optical potential. Our results of active acceleration manipulation in graded media are pertinent to Airy-type beam propagation in various environments.

Generation of Airy vortex and Airy vector beams based on the modulation of dynamic and geometric phases

“…In recent years, the Airy beam has attracted considerable attention for its unique property such as self-accelerating [2,3], diffraction-free [4], and self-healing [5] during propagation. Recently, more generalized forms of the Airy beams have been proposed and obtained including an Airy-Gaussian beam [6], Airy complex-variable Gaussian beam [7], and Airy vortex beam [8,9].…”

Phase singularities and energy fluxes of a noncanonical vortex dipole Airy beam in the far field

“…Tremendous effort has been devoted to elucidate fundamental features and explore potential applications such as self-healing [3,4], cleaning microparticles [5], optical micromanipulation [6,7], plasma guidance [8,9], and vacuum electron acceleration [10,11]. Moreover, the study of Airy beams has been extended from fully coherent fields to partially coherent fields [12][13][14], from paraxial cases to nonparaxial cases [15][16][17], and from general optical systems to nonlinear mediums [18][19][20][21][22][23][24]. In terms of experimental realization, the Airy beams can be generated by means of spatial light modulator [2], phase mask [8], and nonlinear photonic crystals [25].…”

Airy laser beams with hyperbolic trajectory in near field

“…В [24] теоретически и экспериментально изуча-лось ускорение ПЭ с помощью градиентной оптики. Для параксиального уравнения со слабым линейным показателем преломления:…”