Bessel-like beams with controllable path

Abstract

In this paper, we present two methods to control the propagation path of a Bessel-like beam. We show that: 1) by adding a carrier frequency f, the beam can be made to deflect with a constant angle; and 2) a second order modification in the conical phase makes the beam deflect akin to an accelerating beam. We observe that both beams with modified phases self-reconstruct. We note however, that the second method of controlling deflection needs to be characterized in more detail since the beam seems to lose its propagation invariant property.