• Acta Optica Sinica
  • Vol. 36, Issue 2, 219001 (2016)
Zhang Chenhao* and Xu Siliu
Author Affiliations
  • [in Chinese]
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    DOI: 10.3788/aos201536.0219001 Cite this Article Set citation alerts
    Zhang Chenhao, Xu Siliu. Multipole Solitons in Two Dimensions PT-Symmetric Optical Potentials[J]. Acta Optica Sinica, 2016, 36(2): 219001 Copy Citation Text show less

    Abstract

    Based on the modified square-operator method and the Fourier collocation method, the transmission characteristics of dipole, tripole and quadrupole solitons in two dimension parity-time (PT) symmetric triangle- Gaussian potential are studied. The results turn out that the field distribution of tripole solitons changes with altering parameter, and no stable tripole soliton exists. For dipole and quadrupole solitons, the powers increase with the propagation constant and decrease with potential depth. Further, it is found that the stability of solitons is controlled by the potential depth of crystal lattice and the propagation constant. For given potential depth, there exists a stable region. With raising potential depth, the size of stable region decreases firstly and then goes up for dipole solitons; whereas it wave-like increases firstly and then decreases for quadrupole solitons.
    Zhang Chenhao, Xu Siliu. Multipole Solitons in Two Dimensions PT-Symmetric Optical Potentials[J]. Acta Optica Sinica, 2016, 36(2): 219001
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