Abruptly autofocusing and autodefocusing optical beams with arbitrary caustics

Chremmos, Ioannis and Chen, Zhigang and Christodoulides, Demetrios N. and Efremidis, Nikolaos K. (2012) Abruptly autofocusing and autodefocusing optical beams with arbitrary caustics. Physical Review A, American Physical Society, 85 (023828). ISSN 1050-2947

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Official URL: http://pra.aps.org/abstract/PRA/v85/i2/e023828


We propose a simple yet efficient method for generating abruptly autofocusing optical beams with arbitrary caustics. In addition we introduce a family of abruptly autodefocusing beams whose maximum intensity suddenly decreases by orders of magnitude right after the target. The method relies on appropriately modulating the phase of a circularly symmetric optical wavefront, such as that of a Gaussian, and subsequently on Fourier-transforming it by means of a lens. If two such beams are superimposed in a Bessel-like standing wave pattern, then a complete mirror-symmetric, with respect to the focal plane, caustic surface of revolution is formed that can be used as an optical bottle. We also show how the same method can be used to produce accelerating 1D or 2D optical beams with arbitrary convex caustics.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Engineering, Science and Mathematics > School of Mathematics > Department of Applied Mathematics
Depositing User: Dr Ioannis Chremmos
Date Deposited: 06 Mar 2012 11:20
Last Modified: 06 Mar 2012 11:20
URI: http://preprints.acmac.uoc.gr/id/eprint/110

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