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Propagation-invariant vortex Airy beam whose singular point follows its main lobe
Title: | Propagation-invariant vortex Airy beam whose singular point follows its main lobe |
Authors: | Suzuki, Masato Browse this author | Yamane, Keisaku Browse this author →KAKEN DB | Omatsu, Takashige Browse this author | Morita, Ryuji Browse this author →KAKEN DB |
Keywords: | optical vortex | orbital angular momentum | Airy beams |
Issue Date: | Nov-2021 |
Publisher: | IOP Publishing |
Journal Title: | New Journal of Physics |
Volume: | 23 |
Issue: | 11 |
Start Page: | 113043 |
Publisher DOI: | 10.1088/1367-2630/ac37af |
Abstract: | We propose and demonstrate a novel vortex Airy beam which is a superposition of an Airy beam and its laterally sheared beam with a pi/2 phase shift. This new-type of vortex Airy beam exhibits stable propagation dynamics, wherein its singular point closely follows its main lobe, unlike conventional vortex Airy beams. Notably, the orbital angular mode purity of this new vortex Airy beam is up to 10% better than that of a conventional vortex Airy beam. We anticipate that this new type of vortex Airy beam, which combines the characteristics of an optical vortex and a diffraction-free Airy beam, will facilitate new directions in applications such as microscopy, material processing and nonlinear optics. |
Type: | article |
URI: | http://hdl.handle.net/2115/83617 |
Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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