Abruptly autofocusing beams from phase perturbations having forced symmetry

Optics Letters
D AmayaPablo Vaveliuk

Abstract

A controllable manipulation of the energy distribution of caustic beams possessing rectangular symmetry is presented. The beams are designed from the spectral phase by adding a linear and/or quadratic perturbation having forced symmetry. This approach breaks the overall caustic structure into branches, allowing a fully controllable displacement of each branch. The caustic breaking leads to peculiar propagation configurations for rectangular beams. Among them, we highlight the abruptly autofocusing beam, which until now was exclusively associated to caustic beams with circular symmetry. Thereby, the abruptly autofocusing effect can be yielded for one-dimensional light sheets, contrary to what happens for circularly symmetric beams. The theoretical predictions are supported by experiments. Besides, the focus width of such rectangular beams can be reduced beyond the standard diffraction limit.

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Aug 25, 2015·Scientific Reports·Domenico BongiovanniRoberto Morandotti
Sep 15, 2015·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·P VaveliukÓ Martnez-Matos
Sep 15, 2015·Optics Express·Bo ChenDongmei Deng
Sep 29, 2017·Optics Letters·Pablo VaveliukÓscar Martínez-Matos
Dec 10, 2017·Optics Express·Zhenyu ZhaoMinglie Hu
Mar 1, 2018·Optics Letters·Maria ManousidakiStelios Tzortzakis
Aug 2, 2018·Optics Letters·Xingyu ChenGuanghui Wang
Aug 31, 2018·Optics Letters·P Frigerio ParenzaP Vaveliuk
Feb 16, 2019·Optics Letters·Xingyu ChenHongzhan Liu

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Citations

Dec 28, 2019·Optics Express·Wenlei YuYunfeng Jiang

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