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Author:

Zhang, Yagang (Zhang, Yagang.) | Pei, Yuheng (Pei, Yuheng.) | Yuan, Yibo (Yuan, Yibo.) | Wen, Feng (Wen, Feng.) | Gu, Yuzong (Gu, Yuzong.) | Wu, Zhenkun (Wu, Zhenkun.)

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Abstract:

Accelerating beams have been the subject of extensive research in the last few decades because of their self-acceleration and diffraction-free propagation over several Rayleigh lengths. Here, we investigate the propagation dynamics of a Fresnel diffraction beam using the nonlocal nonlinear Schrödinger equation (NNLSE). When a nonlocal nonlinearity is introduced into the linear Schrödinger equation without invoking an external potential, the evolution behaviors of incident Fresnel diffraction beams are modulated regularly, and certain novel phenomena are observed. We show through numerical calculations, under varying degrees of nonlocality, that nonlocality significantly affects the evolution of Fresnel diffraction beams. Further, we briefly discuss the two-dimensional case as the equivalent of the product of two one-dimensional cases. At a critical point, the Airy-like intensity profile oscillates between the first and third quadrants, and the process repeats during propagation to yield an unusual oscillation. Our results are expected to contribute to the understanding of NNLSE and nonlinear optics. © 2021 Chinese Physical Society and IOP Publishing Ltd.

Keyword:

Control nonlinearities Crack propagation Diffraction Nonlinear equations Nonlinear optics

Author Community:

  • [ 1 ] [Zhang, Yagang]Institute of Nano/Photon Materials and Application, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng; 475004, China
  • [ 2 ] [Pei, Yuheng]College of Miami, Henan University, Kaifeng; 475004, China
  • [ 3 ] [Yuan, Yibo]College of Miami, Henan University, Kaifeng; 475004, China
  • [ 4 ] [Wen, Feng]Key Laboratory for Physical Electronics and Devices, Ministry of Education, School of Science, Shaanxi Key Laboratory of Information Photonic Technique, Institute of Wide Bandgap Semiconductors, Xi'An Jiaotong University, Xi'an; 710049, China
  • [ 5 ] [Gu, Yuzong]Institute of Nano/Photon Materials and Application, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng; 475004, China
  • [ 6 ] [Wu, Zhenkun]Institute of Nano/Photon Materials and Application, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng; 475004, China

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Source :

Chinese Physics B

ISSN: 1674-1056

Year: 2021

Issue: 11

Volume: 30

1 . 4 9 4

JCR@2020

ESI Discipline: PHYSICS;

ESI HC Threshold:26

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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