Nondiffracting chirped Bessel waves in optical antiguides

Chremmos, Ioannis; Giamalaki, Melpomeni

doi:10.1364/JOSAA.32.000867

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Nondiffracting chirped Bessel waves in optical antiguides

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Chremmos, Ioannis
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Chremmos, I., & Giamalaki, M. (2015). Nondiffracting chirped Bessel waves in optical antiguides. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 32(5), 867-876. doi:10.1364/JOSAA.32.000867.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-63D0-8

Abstract

Chirped Bessel waves are introduced as stable (nondiffracting) solutions of the paraxial wave equation in optical antiguides with a power-law radial variation in their index of refraction. Through numerical simulations, we investigate the propagation of apodized (finite-energy) versions of such waves, with or without vorticity, in antiguides with practical parameters. The new waves exhibit a remarkable resistance against the defocusing effect of the unstable index potentials, outperforming standard Gaussians with the same full width at half-maximum. The chirped profile persists even under conditions of eccentric launching or antiguide bending and is also capable of self-healing like standard diffraction-free beams in free space. (C) 2015 Optical Society of America