Soliton dynamics in quadratic nonlinear media with two-dimensional Pythagorean aperiodic lattices

被引：8

作者：

Bagci, Mahmut ^{[1
]}

机构：

[1] Yeditepe Univ, Sch Appl Sci, TR-34755 Istanbul, Turkey

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2021年 / 38卷 / 04期

关键词：

SCHRODINGER-EQUATION; GRAPHENE; DELOCALIZATION; LOCALIZATION; TRANSITION; STATES; WAVES;

D O I：

10.1364/JOSAB.416299

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The dynamics of two-dimensional Pythagorean lattice solitons are explored in quadratic nonlinear media. The study is focused on variation of sub-lattice depths and the strength of quadratic optical effects that specify characteristics of the considered model. The numerical existence of periodic and aperiodic lattice solitons is demonstrated, and the stability domain of solitons is determined for all parameters in the model. It is shown that, although the existence domain of periodic and aperiodic lattice solitons is identical, the stability region of periodic lattice solitons is narrower than that of aperiodic lattice solitons. It is manifested that stable solitons can exist in both periodic and aperiodic lattices, and decay of unstable solitons can be arrested by increasing the potential depth and decreasing the propagation constant. (C) 2021 Optical Society of America

引用

页码：1276 / 1282

页数：7

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