Abstract
We investigate numerically that a finite Airy-Gaussian (AiG) beam varies its trajectory and shape in defected photonic lattices. Propagation properties and beam self-bending are controlled with modulation depth and period of photonic lattices, positive and negative defects, beam distribution factor and nonlinearities. For positive defects, the pseudo-period oscillation and localization of the AiG beam may form under a certain condition, while the beam diffuses in negative defects. Moreover, the solitons may appear during the propagation when the self-focusing nonlinearity is introduced.
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This work was supported by the Natural Science Foundation of Guangdong Province of China (Grant No. 2016A030313747) and the National Natural Science Foundation of China (Grant No. 11547212).
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Shi, Z., Xue, J., Zhu, X. et al. Propagation of an Airy-Gaussian beam in defected photonic lattices. Appl. Phys. B 123, 159 (2017). https://doi.org/10.1007/s00340-017-6737-4
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DOI: https://doi.org/10.1007/s00340-017-6737-4