Results 81 to 90 of about 15,986,815 (176)

Microring Resonator Dispersion Metrology With Neural Networks

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
We present a machine learning framework for inverse and forward characterization of microring resonators, inferring geometry and material dispersion from sparse spectral data. The approach achieves nanometer‐scale accuracy and > 99% material identification, while reconstructing full dispersion spectra.
Ergun Simsek, Shao‐Chien Ou, Gregory Moille, Kartik Srinivasan   +3 more
wiley   +1 more source

Direct Observation of Propagating Spin Waves in a Spin Hall Nano‐Oscillator

Advanced Materials, Volume 38, Issue 52, 16 September 2026.
By combining frequency injection locking with time‐resolved scanning transmission x‐ray microscopy (TR‐STXM), the authors image the real‐time magnetization dynamics of a spin Hall nano‐oscillator (SHNO) for the first time. Their results reveal richer dynamics than previously reported and challenge existing assumptions regarding the radiation hardness ...
Victor H. González, Frank Schulz, Nilamani Behera, Martina Ahlberg, Akash Kumar, Andreas Frisk, Felix Groß, Sven Erik Ilse, Steffen Wittrock, Markus Weigand, Gisela Schütz, Johan Åkerman, Sebastian Wintz   +12 more
wiley   +1 more source

Novel Soliton Propagation Governed by a Multi-Component Generalized NLS Equation with Fractional Order and Variable Coefficients

Fractal and Fractional
This study reveals novel soliton propagation governed by a variable-coefficient fractional-order multi-component generalized nonlinear Schrödinger (vfmgNLS) equation with the Riesz derivative, using an analytical approach.
Jinling Zhang, Chunxia An, Sheng Zhang
doaj   +1 more source

Seven‐Fold Compression of Mid‐Infrared Pulses Using a Series of Titanium Dioxide Plates

Advanced Optical Materials, Volume 14, Issue 35, 18 September 2026.
Here, a sequence of three titanium dioxide plates is used to compress a mid‐infrared pulse from 103.9 femtoseconds to 14.1 femtoseconds (about two optical cycles) without the use of external dispersion compensation. The approach maintains high efficiency and produces pulses with a stable carrier‐envelope phase, providing a compact platform for ...
André M. Côté, Dillon Lim, Nicholas Karpowicz, Gary W. Leach, Shawn Sederberg   +4 more
wiley   +1 more source

Many body effects in one-dimensional attractive Bose gases [PDF]

, 2013
In this thesis we investigate the properties of ultra-cold quantum gases in reduced dimension and the effects of harmonic confinement on soliton-like properties.
HOLDAWAY, DAVID,IAN,HENRY
core  

Nonlinear evolution of disturbances in higher time-derivative theories

Journal of High Energy Physics
We investigate the evolution of localized initial value profiles when propagated in integrable versions of higher time-derivative theories. In contrast to the standard cases in nonlinear integrable systems, where these profiles evolve into a specific ...
Andreas Fring, Takano Taira, Bethan Turner   +2 more
doaj   +1 more source

Toward 100‐Watt‐Level Mid‐Infrared Supercontinuum Light Generation

Advanced Photonics Research, Volume 7, Issue 9, September 2026.
Output power of mid‐infrared supercontinuum (SC) light sources severely prevents their application in long‐distance remote sensing, hyperspectral imaging, directional infrared countermeasures, and so forth. This work demonstrates a 100‐watt‐level all‐fiber mid‐infrared SC light source based on homemade low‐loss (~0.022 dB/m) fluorotellurite glass ...
Qian Zhang, Chengyun Zhang, Changjian Lv, Zhixu Jia, Fangning Wang, Chenyu Wang, Songshan He, Fanchao Meng, Weiping Qin, Guanshi Qin   +9 more
wiley   +1 more source

Approach in Theory of Nonlinear Evolution Equations: The Vakhnenko-Parkes Equation

Advances in Mathematical Physics, 2016
A variety of methods for examining the properties and solutions of nonlinear evolution equations are explored by using the Vakhnenko equation (VE) as an example.
V. O. Vakhnenko, E. J. Parkes
doaj   +1 more source

The Benjamin–Ono Equation in the Zero‐Dispersion Limit for Rational Initial Data: Generation of Dispersive Shock Waves

Communications on Pure and Applied Mathematics, Volume 79, Issue 9, Page 2107-2157, September 2026.
ABSTRACT The leading‐order asymptotic behavior of the solution of the Cauchy initial‐value problem for the Benjamin–Ono equation in L2(R)$L^2(\mathbb {R})$ is obtained explicitly for generic rational initial data u0$u_0$. An explicit asymptotic wave profile uZD(t,x;ε)$u^\mathrm{ZD}(t,x;\epsilon)$ is given, in terms of the branches of the multivalued ...
Elliot Blackstone, Louise Gassot, Patrick Gérard, Peter D. Miller   +3 more
wiley   +1 more source

Fractional Soliton Dynamics and Spectral Transform of Time-Fractional Nonlinear Systems: A Concrete Example

Complexity, 2019
In this paper, the spectral transform with the reputation of nonlinear Fourier transform is extended for the first time to a local time-fractional Korteweg-de vries (tfKdV) equation.
Sheng Zhang, Yuanyuan Wei, Bo Xu
doaj   +1 more source