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Title: Self-bending symmetric cusp beams

A type of self-bending symmetric cusp beams with four accelerating intensity maxima is theoretically and experimentally presented. Distinguished from the reported regular polygon beams, the symmetric cusp beams simultaneously exhibit peculiar features of natural autofocusing and self-acceleration during propagation. Further, such beams take the shape of a fine longitudinal needle-like structure at the focal region and possess the strong ability of self-healing over obstacles. All these intriguing properties were verified experimentally. Particularly, the spatial profile of the reconstructed beam exhibits spatially sculpted optical structure with four siamesed curved arms. Thus, we anticipate that the structured beam will benefit optical guiding and optofluidics in surprising ways.
Authors:
; ; ;  [1] ;  [2]
  1. Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui Province 230026 (China)
  2. Department of Physics and Astronomy, San Francisco State University, San Francisco, California 94132 (United States)
Publication Date:
OSTI Identifier:
22486177
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 23; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACCELERATION; BEAMS; CUSPED GEOMETRIES; DIAGRAMS; SHAPE; SYMMETRY