Results 51 to 60 of about 5,509 (159)

SOLUCIÓN DE LA ECUACIÓN NO LINEAL DE SCHRODINGER (1+1) EN UN MEDIO KERR

Redes de Ingeniería, 2015
Se presenta un marco teórico y se muestra una simulación numérica de la propagación de solitones. Con especial atención a los solitones ópticos espaciales, se calcula analíticamente el perfil de solitón correspondiente a la ecuación Schrodinger no-lineal
Francis Armando Segovia, Emilse Cabrera
doaj   +1 more source

Soliton Turbulence in Approximate and Exact Models for Deep Water Waves

Fluids, 2020
We investigate and compare soliton turbulence appearing as a result of modulational instability of the homogeneous wave train in three nonlinear models for surface gravity waves: the nonlinear Schrödinger equation, the super compact Zakharov equation ...
Dmitry Kachulin, Alexander Dyachenko, Vladimir Zakharov   +2 more
doaj   +1 more source

Finite Element Analysis for Li Batteries at the Mesoscale

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Finite element analysis (FEA), through multi‐physics coupling, has been widely employed to calculate mesoscale structures in LIBs that exhibit inherent randomness and disorder (Figure a). It has been extensively applied to the investigation of critical phenomena such as Li dendrite evolution, Li+ concentration gradients, SEI film growth, particle ...
Guanwu Li, Bo Gao, Dong Wang, Weitao Zheng   +3 more
wiley   +1 more source

Modulation instability analysis of modify unstable nonlinear schrodinger dynamical equation and its optical soliton solutions

Results in Physics, 2017
The nonlinear Schrödinger equations (NLSEs) describe the promulgation of ultra-short pluse in optical fibers. The modify unstable nonlinear Schrödinger equation (mUNLSE) is a universal equation of the class of nonlinear integrable systems in NLSEs, which
Muhammad Arshad, Aly R. Seadawy, Dianchen Lu, Wang Jun   +3 more
doaj   +1 more source

Solving a nonlinear fractional Schrödinger equation using cubic B-splines

Advances in Difference Equations, 2020
We study the inhomogeneous nonlinear time-fractional Schrödinger equation for linear potential, where the order of fractional time derivative parameter α varies between 0 < α < 1 $0 < \alpha < 1$ .
M. Erfanian, H. Zeidabadi, M. Rashki, H. Borzouei   +3 more
doaj   +1 more source

Deterministic Fiber‐Optic Spectral Engineering Enables Three‐Color Multiplexed Two‐Photon Microscopy

Laser &Photonics Reviews, EarlyView.
A simulation‐guided spectral‐engineering framework maps the nonlinear parameter space of a fiber laser platform to identify balanced three‐band excitation states. The resulting 960, 1080, and 1175 nm femtosecond pulses deliver nJ‐level energies for low‐cross‐talk chromatically multiplexed two‐photon microscopy.
Marvin Edelmann, Andreu Matamoros‐Angles, Mohsin Shafiq, Mikhail Pergament, Franz X. Kärtner, Markus Glatzel   +5 more
wiley   +1 more source

Visible Octave Frequency Combs in Silicon Nitride Nanophotonic Waveguides Driven by Ti:Sapphire Lasers

Laser &Photonics Reviews, EarlyView.
Chip‐based frequency combs are usually pumped from telecom wavelengths, far from the visible. This work instead pumps close to the visible with a Ti:sapphire laser ‐ the source behind the original optical frequency combs and now becoming chip‐integrable‐ and lets silicon‐nitride waveguides convert it into efficient, octave‐spanning visible‐to‐infrared ...
Abdullah Alabbadi, Ewan Allan, Hanna Ostapenko, Pablo Castro‐Marín, Derryck T. Reid, Pascal Del'Haye   +5 more
wiley   +1 more source

Unveiling New Perspectives on the Hirota–Maccari System With Multiplicative White Noise

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this study, we delve into the stochastic Hirota–Maccari system, which is subjected to multiplicative noise according to the Itô sense. The stochastic Hirota–Maccari system is significant for its ability to accurately model how stochastic affects nonlinear wave propagation, providing valuable insights into complex systems like fluid dynamics
Mohamed E. M. Alngar, Khaled A. Gepreel, Reham M. A. Shohib, Yakup Yildirim   +3 more
wiley   +1 more source

PERIODIC STATES NEAR THE PLANE DEFECT WITH NON-LINEAR RESPONSE SEPARATING NON-LINEAR SELF-FOCUSING AND LINEAR CRYSTALS

Конденсированные среды и межфазные границы, 2018
The paper presents a model describing the peculiarities of localised excitation on the boundary between linear and nonlinear self-focusing media. The medium boundary is a plane defect with internal nonlinear properties.
Sergey E. Savotchenko
doaj   +1 more source

Sundman‐Like Transformations and the NRT Nonlinear Schrödinger Equation

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We present a new generalization of the well‐known power‐type Sundman transformation, involving not only powers of the function but also of its derivative, along with its inverse. Our aim is to explore the use of such transformations in the derivation of solutions of ordinary differential equations and in the study of their properties.
P. R. Gordoa, A. Pickering, D. Puertas‐Centeno, E. V. Toranzo   +3 more
wiley   +1 more source