Journal
OPTICS LETTERS
Volume 47, Issue 22, Pages 5766-5769Publisher
Optica Publishing Group
DOI: 10.1364/OL.473388
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Funding
- National Natural Science Foundation of China [62125503]
- Key R&D Program of Guangdong Province [2018B030325002]
- Key R&D Program of Hubei Province [2020BAB001, 2021BAA024]
- Science, Technology and Innovation Commission of Shenzhen Municipality [JCYJ20200109114018750]
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Bessel beams with diffracting-free propagation and self-reconstruction have attracted great interest for their potential applications. This study successfully generated zeroth- and higher-order Bessel beams with propagation invariance using the femtosecond direct laser writing technique, providing possibilities for integrated optics applications.
Featuring diffracting-free propagation and self-reconstruction, Bessel beams (BBs) have sparked great interest in the scientific community. These properties give the potential for application in optical communications, laser machining, and optical tweezers. However, generating such beams with high quality is still challenging. Here, by using the femtosecond direct laser writing (DLW) based on two-photon polymerization (TPP) technique, we convert phase distributions of ideal BBs with different topological charges into polymer phase plates. The experimentally generated zeroth- and higherorder BBs are propagation-invariant up to 800 mm. Our workmay facilitate the applications of non-diffracting beams in integrated optics. (c) 2022 Optica Publishing Group
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