Surface defect kink solitons |
| |
| Authors: | Shunsheng Zhong Changming Huang Chunyan Li Liangwei Dong |
| |
| Institution: | 1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;2. Division of Materials Science and Technology, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;1. Sensory Neuroscience Department, Boys Town National Research Hospital, 555 North 30th St., Omaha, NE 68131, USA;2. National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China;3. University of Nebraska Medical Center, 600 S 42nd, Omaha, NE 68198, USA;1. VMR Institute for Vitreous Macula Retina, Huntington Beach, California;2. Doheny Eye Institute, University of California, Los Angeles, Los Angeles, California;1. Duke Eye Center and Department of Ophthalmology, Duke University Medical Center, Durham, NC 27710, United States;2. Department of Biomedical Engineering, Duke University, Durham, NC 27708, United States;1. Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Via Opera Pia 11a, 16145 Genova, Italy;2. Department of Computer Science and Technology, Bioengineering, Robotics and Systems Engineering, University of Genoa, Via Opera Pia 13, 16145 Genova, Italy;3. Istituto di Biofisica, Consiglio Nazionale delle Ricerche, Via de Marini 6, I-16149 Genova, Italy |
| |
| Abstract: | We reveal the existence of dynamically stable nonlinear defect kink modes at an interface separating a defocusing Kerr medium and an imprinted semi-infinite lattice with a positive or negative defect covering single or several lattice sites. Increasing the number of defect sites equivalently results in a band-gap shift of lattice which in return alters the existence domains and stability properties of defect solitons. Comparing with the uniform semi-infinite lattice, the instability of kink soliton in lattice with a negative defect is significantly suppressed, especially for in-phase soliton. Our results provide an effective way for the realization of stable in-phase kink solitons. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
