Results 41 to 50 of about 7,012 (198)

Advancing Energy Materials by In Situ Atomic Scale Methods

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss   +21 more
wiley   +1 more source

Optical soliton: Review of its discovery and applications in ultra-high-speed communications

open access: yesFrontiers in Physics, 2022
This paper reviews the discovery of the optical soliton and historical attempts of its applications in ultra-high-speed communications. It also reveals various episodes that took place in the course of its discovery and in subsequent developments in the ...
Akira Hasegawa
doaj   +1 more source

Thin‐film lithium niobate photonics: Frontiers in millimeter‐wave and terahertz generation and integrated applications

open access: yesInfoScience, EarlyView.
With the advancement of 6G communications, high‐precision radar, and advanced imaging technologies, there is a growing demand for compact, high‐performance light sources capable of generating high‐frequency radio waves (millimeter‐wave and terahertz waves). This article systematically introduces how to efficiently generate these high‐frequency waves on
Jianfeng Xiong   +8 more
wiley   +1 more source

Conditional recovery of time-reversal symmetry in many nucleus systems

open access: yesNew Journal of Physics, 2019
The propagation of non-topological solitons in many-nucleus systems is studied based on time-dependent density functional calculations, focusing on mass and energy dependence.
Yoritaka Iwata, Paul Stevenson
doaj   +1 more source

MODELLING OF THE KdV-BURGERS EQUATION SOLITARY WAVES IN DISSIPATIVE NONHOMOGENEOUS MEDIA

open access: yesНаучный вестник МГТУ ГА, 2018
The work is a continuation of the research begun in previous works of the authors. At present, the theory of nonlinear waves is experiencing rapid development, and its results find numerous practical applications. One can mention the direction associated
A. V. Samokhin, Y. I. Dementyev
doaj   +1 more source

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

open access: yesLaser &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   +5 more
wiley   +1 more source

Anomalous quantized nonlinear soliton pumping

open access: yesNature Communications
It has recently been theoretically predicted and experimentally observed that a soliton resulting from nonlinearity can be pumped across an integer or fractional number of unit cells as a system parameter is slowly varied over a pump period.
Yu-Liang Tao, Jiong-Hao Wang, Yong Xu
doaj   +1 more source

Well-separated soliton-antisoliton pairs with an adjoint Higgs field in 4D space

open access: yesPhysics Letters B
We present single soliton states and soliton-antisoliton states with an adjoint Higgs field in 4D flat space. The action of a single soliton state diverges, while the action of soliton-antisoliton states converges.
Liang Gong, Rui Shen
doaj   +1 more source

Broadband Parametric Amplification in AlGaAs‐on‐Insulator Nanowaveguides

open access: yesLaser &Photonics Reviews, EarlyView.
Harnessing the exceptional nonlinearity of AlGaAs‐on‐insulator nanowaveguides, four‐wave‐mixing parametric amplification achieves a record net on‐chip gain of 56 dB and a gain bandwidth exceeding 415 nm at telecom wavelengths. These results establish AlGaAsOI as a powerful platform for compact, high‐performance integrated nonlinear optical ...
Yanjing Zhao   +6 more
wiley   +1 more source

The symmetries of solitons [PDF]

open access: yesBulletin of the American Mathematical Society, 1997
In this article we will retrace one of the great mathematical adventures of this century—the discovery of the soliton and the gradual explanation of its remarkable properties in terms of hidden symmetries. We will take an historical approach, starting with a famous numerical experiment carried out by Fermi, Pasta, and Ulam on one of the first ...
openaire   +2 more sources

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