首页|Constructing arbitrary self-similar Bessel-like beams via transverse-longitudinal mapping
Constructing arbitrary self-similar Bessel-like beams via transverse-longitudinal mapping
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Based on the transverse-longitudinal mapping of Bessel beams,we propose a simple method to construct a self-similar Bessel-like beam whose transverse profile maintains a stretched form during propagation.Specifically,the propagating-variant width of this beam can be flexibly predesigned.We experimentally demonstrate three types of self-similar Bessel-like beams whose width variations are linear,piecewise,and period functions of propagation distance,respectively.The experimental results match well with the theoretical predictions.We also demonstrate that our approach enables the generation of self-similar higher-order vortex Bessel-like beams.
Key Laboratory of Light Field Manipulation and Information Acquisition,Ministry of Industry and Information Technology,Shaanxi Key Laboratory of Optical Information Technology,School of Physical Science and Technology,Northwestern Polytechnical University,Xi'an 710129,China
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