Title

Advanced Trajectory Engineering Of Diffraction-Resisting Laser Beams

Keywords

Accelerating beams; Bessel beams; Diffractionless beams; Laser beams; Trajectory engineering

Abstract

We introduce an analytical technique for engineering the trajectory of diffraction-resisting laser beams. The generated beams have a Bessel-like transverse field distribution and can be navigated along rather arbitrary curved paths in free space, thus being an advanced hybrid between accelerating and non-accelerating diffraction-free optical waves. The method involves phase-modulating the wavefront of a Gaussian laser beam to create a continuum of conical ray bundles whose apexes define a prespecified focal curve, along which a nearly perfect circular intensity lobe propagates without diffracting. Through extensive numerical simulations, we demonstrate the great flexibility in the design of a gamut of different beam trajectories. Propagation around obstructions and self-healing scenarios are also investigated. The proposed wave entities can be used extensively for light trajectory control in applications such as laser microfabrication, optical tweezers and curved plasma filamentation spectroscopy.

Publication Date

5-30-2013

Publication Title

PHOTOPTICS 2013 - Proceedings of the International Conference on Photonics, Optics and Laser Technology

Number of Pages

10-18

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

84878199179 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84878199179

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