Study on propagation property of self-focusing pin-like beams

Kaichen Pi; Yuanzhong Kuang; Yuan Xiao; Xiang Zhang

doi:10.1117/12.2602872

31 August 2021 Study on propagation property of self-focusing pin-like beams

Kaichen Pi, Yuanzhong Kuang, Yuan Xiao, Xiang Zhang

Proceedings Volume 11907, Sixteenth National Conference on Laser Technology and Optoelectronics; 1190713 (2021) https://doi.org/10.1117/12.2602872
Event: Sixteenth National Conference on Laser Technology and Optoelectronics, 2021, Shanghai, China

Abstract

Radially symmetric Airy-like beams have the ability to autofocus abruptly, which leads to a wild application, for instance, particle manipulation and light bullets. On the basic of the theory of 1D self-accelerating Airy beam, this thesis starts the research on propagation property of Airy-like self-focusing pin-like beams. Based on the theory of stationary phase calculation, we obtain the trajectory function of Airy-like beams and dynamics of the optical beam before the focus and beyond. With the method of beam split-step Fourier method, we theoretically analyze the transverse and longitude amplitude trending of this optical beam. It turns out that Airy-like beam propose an abruptly autofocusing property like circularly symmetric Airy beam, its propagation follows a parabolic trajectory and tends to focus on the axial; after focusing, the optical beam morphs into a Bessel-like beam, its main lobe size decreases during the propagation and finally becomes pin-like.

Citation Download Citation

Kaichen Pi, Yuanzhong Kuang, Yuan Xiao, and Xiang Zhang "Study on propagation property of self-focusing pin-like beams", Proc. SPIE 11907, Sixteenth National Conference on Laser Technology and Optoelectronics, 1190713 (31 August 2021); https://doi.org/10.1117/12.2602872

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