Engineering parabolic beams with dynamic intensity profiles

Abstract

We present optical fields formed by superposing nondiffracting parabolic beams with distinct longitudinal wave-vector components, generating light profiles that display intensity fluxes following parabolic paths in the transverse plane. Their propagation dynamics vary depending on the physical mechanism originating interference, where the possibilities include constructive and destructive interference between traveling parabolic beams, interference between stationary parabolic modes, and combinations of these. The dark parabolic region exhibited by parabolic beams permits a straightforward superposition of intensity fluxes, allowing formation of a variety of profiles, which can exhibit circular, elliptic, and other symmetries.

Self-healing of structured light: a review

“…After the verification of self-healing in zero-order Bessel beams, this too was noted in many other kinds of nondiffracting modes, such as higher-order Bessel beams carrying OAM [50][51][52], fractional Bessel beams [15,53,54], asymmetric Bessel beams [55], parabolic modes [56,57], and Mathieu beams [41]. In these experimental explorations, various kinds of nondiffracting modes were generated and self-healing properties were verified.…”