Zobrazeno 1 - 10
of 117
pro vyhledávání: '"He, Yingji"'
We study the nonlinear optical properties of heterojunctions made of graphene nanoribbons (GNRs) consisting of two segments with either the same or different topological properties. By utilizing a quantum mechanical approach that incorporates distant
Externí odkaz:
http://arxiv.org/abs/2304.08794
Publikováno v:
In Chaos, Solitons and Fractals: the interdisciplinary journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena December 2024 189 Part 2
Autor:
He, Shangling, Zhou, Kangzhu, Malomed, Boris A., Mihalache, Dumitru, Zhang, Liping, Tu, Jialong, Wu, You, Zhao, Jiajia, Peng, Xi, He, Yingji, Zhou, Xiang, Deng, Dongmei
Publikováno v:
In 2021
We address the propagation of vortex beams with the circular Airy-Gaussian shape in a (2+1)-dimensional optical waveguide modeled by the fractional nonlinear Schrodinger equation. Systematic analysis of autofocusing of the beams reveals a strongly no
Externí odkaz:
http://arxiv.org/abs/2110.00185
Autor:
Hu, Guangqi, Xu, Hong, Wang, Ziyi, Xie, Gening, Lv, Yang, He, Yingji, Zhang, Haoran, Zhang, Xuejue, Lei, Bingfu
Publikováno v:
In Materials Research Bulletin May 2024 173
Publikováno v:
Phys. Lett. A 2021
We analyze the propagation dynamics of radially polarized symmetric Airy beams (R-SABs) in a (2+1)-dimensional optical system with fractional diffraction, modeled by the fractional Schr\"odinger equation (FSE) characterized by the L\'evy index. The a
Externí odkaz:
http://arxiv.org/abs/2105.00380
Publikováno v:
Chin. Phys. B,2021,30(4):044213
A distant-neighbor quantum-mechanical method is used to study the nonlinear optical wave mixing in graphene nanoflakes (GNFs), including sum- and difference-frequency generation, as well as four-wave mixing. Our analysis shows that molecular-scale GN
Externí odkaz:
http://arxiv.org/abs/2102.09843
Publikováno v:
In Physica D: Nonlinear Phenomena January 2024 457
Autor:
He, Shangling, Malomed, Boris A., Mihalache, Dumitru, Peng, Xi, Yu, Xing, He, Yingji, Deng, Dongmei
Publikováno v:
CHAOS 110470 2020
We introduce axisymmetric Airy-Gaussian vortex beams in a model of an optical system based on the (2+1)-dimensional fractional Schr\"odinger equation, characterized by its L\'evy index (LI). By means of numerical methods, we explore propagation dynam
Externí odkaz:
http://arxiv.org/abs/2012.00694
We have investigated the propagation dynamics of the circular Airy Gaussian vortex beams (CAGVBs) in a (2+1)-dimesional optical system discribed by fractional nonlinear Schr\"odinger equation (FNSE). By combining fractional diffraction with nonlinear
Externí odkaz:
http://arxiv.org/abs/2012.06483
We address the existence and stability of localized modes in the framework of the fractional nonlinear Schroedinger equation (FNSE) with the focusing cubic or focusing-defocusing cubic-quintic nonlinearity and a confining harmonic-oscillator (HO) pot
Externí odkaz:
http://arxiv.org/abs/2008.07866