Issue |
J. Eur. Opt. Society-Rapid Publ.
Volume 21, Number 2, 2025
|
|
---|---|---|
Article Number | 35 | |
Number of page(s) | 6 | |
DOI | https://doi.org/10.1051/jeos/2025032 | |
Published online | 31 July 2025 |
Research Article
Generation of nondiffracting radial carpet-lattice beams by using an extended Durnin’s setup
1
College of Modern Science and Technology, China Jiliang University, Jinhua, Zhejiang, 321004, PR China
2
Key Laboratory of Optical Information Detecting and Display Technology, Zhejiang Normal University, Jinhua, Zhejiang, 321004, PR China
* Corresponding author: renzhijun@zjnu.cn
Received:
16
April
2025
Accepted:
3
July
2025
In the past, the researchers have generated radial carpet beams, a type of 2D optical lattice with polar symmetry. However, the classical radial carpet beams expand slowly as they propagate, that is, they are not nondiffracting beams. By introducing an extended Durnin’s experimental setup equipped with an amplitude-type spatial light modulator loaded with the angular spectrum of a radial grating function, which is distributed along narrow annular pupils, we generated and demonstrated a type of nondiffracting radial carpet-lattice beam. Different from classical radial carpet beams that slowly expand during propagation, the generated nondiffracting radial carpet-lattice beams are propagation-invariant, hence termed nondiffracting radial carpet-lattice beams.
Key words: Radial carpet-lattice beams / Radial gratings / Durnin’s experimental setup / Amplitude-type spatial light modulator
© The Author(s), published by EDP Sciences, 2025
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