Transmission, reflection, scattering, and trapping of traveling discrete solitons by <math xmlns=

doi:10.1007/s11467-014-0452-y

Front. Phys.

2015, Vol. 10

Issue (2) : 104201 https://doi.org/10.1007/s11467-014-0452-y

RESEARCH ARTICLE

Transmission, reflection, scattering, and trapping of traveling discrete solitons by

C

and

V

point defects

Jin-Hong Huang¹,Hong-Ji Li¹,Xiang-Yu Zhang^1,²,Yong-Yao Li^1,^*(

)

1. Department of Applied Physics, South China Agricultural University, Guangzhou 510642, China
2. Department of Electrical and Computer Engineering, Duke University, Durham, NC 27708, USA

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Abstract

We study the interactions of moving discrete solitons in waveguide arrays with two types of point defects that are constructed by varying either the local linear coupling or local waveguide propagation constant at the center of the waveguide array. A broad discrete soliton is kicked toward the defect and interacts with it. Transmission, reflection, scattering, and trapping during the interaction between the soliton and the defect occur depending on the parameters. The detailed behavior of the soliton dynamics is analyzed numerically. A transmission window in the parameter domain is found and the behavior of this window for different parameters is studied. The dynamics of the soliton in the transmission window is found to have chaotic features under certain circumstances and the causes of these phenomena are identified and discussed.

Keywords traveling discrete soliton waveguide arrays C -defect and

V

-defect')" href="#">

C

-defect and

V

-defect

Corresponding Author(s): Yong-Yao Li

Issue Date: 13 March 2015

Cite this article:

Jin-Hong Huang,Hong-Ji Li,Xiang-Yu Zhang, et al. Transmission, reflection, scattering, and trapping of traveling discrete solitons by

C

and

V

point defects[J]. Front. Phys. , 2015, 10(2): 104201.

URL:

https://academic.hep.com.cn/fop/EN/10.1007/s11467-014-0452-y
https://academic.hep.com.cn/fop/EN/Y2015/V10/I2/104201

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