Generation and manipulation for high-order catastrophe swallowtail beams

Houan Teng; Yiming Cai; Yanping Ian; Yixian Qian

doi:10.1117/12.2603150

31 August 2021 Generation and manipulation for high-order catastrophe swallowtail beams

Houan Teng, Yiming Cai, Yanping Ian, Yixian Qian

Proceedings Volume 11907, Sixteenth National Conference on Laser Technology and Optoelectronics; 119072N (2021) https://doi.org/10.1117/12.2603150
Event: Sixteenth National Conference on Laser Technology and Optoelectronics, 2021, Shanghai, China

Abstract

We propose a universal method for generating high-order Swallowtail diffraction catastrophe beams, according to diffraction catastrophe theory. The curved caustic structure of Swallowtail beams (SBs) are derived from the potential function. Due to the complexity of the high-order diffraction catastrophe, the SBs can be tuned to various optical structures. Our experimental results are consistent with the numerical simulations, verifying the correctness of the theory. Further, we report a new family of autofocusing circular swallowtail beams (CSBs). Compared with the previous circular Airy and Pearcey beams, due to higher-order diffraction catastrophe, these CSBs have more propagation trajectories, and therefore seem to have more diversity and tunability. The experimental results are in good agreement with the numerical simulations. These various SBs and CSBs could have potential applications in optical trapping, optical manipulation or medical treatment.

Citation Download Citation

Houan Teng, Yiming Cai, Yanping Ian, and Yixian Qian "Generation and manipulation for high-order catastrophe swallowtail beams", Proc. SPIE 11907, Sixteenth National Conference on Laser Technology and Optoelectronics, 119072N (31 August 2021); https://doi.org/10.1117/12.2603150

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