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The interaction of two lasers with a difference frequency near that of the ambient plasma frequency produces beat waves that can resonantly accelerate thermal electrons. These beat waves can be used to drive electron current and thereby…

Plasma Physics · Physics 2014-03-13 D. R. Welch , T. C. Genoni , C. Thoma , D. V. Rose , S. C. Hsu

Laser Light Scattering (LLS) method, combined with a long-distance microscope was utilized to detect micrometer-sized particles on a smooth substrate. LLS was capable to detect individual particle release, shrink, or fragmentation during…

Plasma Physics · Physics 2023-07-13 D. Shefer , A. Nikipelov , M. van de Kerkhof , V. Banine , J. Beckers

We present the first $N$-body simulations that adapt the equations of smoothed particle hydrodynamics to capture the effect of dark matter self-interactions which are too frequent to be resolved explicitly. The relevant energy transfer…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-22 Janis Kummer , Marcus Brüggen , Klaus Dolag , Felix Kahlhoefer , Kai Schmidt-Hoberg

Numerical modeling of electromagnetic waves is an important tool for understanding the interaction of light and matter, and lies at the core of computational electromagnetics. Traditional approaches to injecting and evolving electromagnetic…

Computational Physics · Physics 2023-07-12 K. Weichman , K. G. Miller , B. Malaca , W. B. Mori , J. R. Pierce , D. Ramsey , J. Vieira , M. Vranic , J. P. Palastro

The absorbed laser energy of a femtosecond laser pulse in a transparent material induces a warm dense matter region which relaxation may lead to structural modifications in the surrounding cold matter. The modeling of the…

In this article, we introduce a universal simulator covering all regimes of matter wave light-pulse elastic scattering. Applied to atom interferometry as a study case, this simulator solves the atom-light diffraction problem in the elastic…

We theoretically investigate the interaction of moderate intensity near-infrared few cycle laser pulses with nano-scale metal tips. Local field enhancement in a nanometric region around the tip apex triggers coherent electron emission on…

Mesoscale and Nanoscale Physics · Physics 2014-08-26 Georg Wachter , Christoph Lemell , Joachim Burgdoerfer

Propagation and scattering of lasers present new phenomena and applications when the plasma medium becomes strongly magnetized. With mega-Gauss magnetic fields, scattering of optical lasers already becomes manifestly anisotropic. Special…

Plasma Physics · Physics 2018-04-04 Yuan Shi , Hong Qin , Nathaniel J. Fisch

The advent of ultrahigh-power femtosecond lasers creates a need for optical components suitable to handle ultrahigh light intensities. Due to the unavoidable laser-induced ionization of matter, these components will have to be based on a…

Plasma Physics · Physics 2015-06-18 H. Vincenti , S. Monchocé , S. Kahaly , Ph. Martin , F. Quéré

A thin layer of overdense plasma is created when an electromagnetic pulse interacts with a rapidly ionizing thin foil. This layer will reflect the incoming pulse, forming a so-called plasma mirror. A simple realistic model based on paired…

Plasma Physics · Physics 2009-11-13 S. S. Bulanov , A. Macchi , A. Maksimchuk , T. Matsuoka , J. Nees , F. Pegoraro

High-power femtosecond laser radiation during the propagation in air (and other transparent media) experiences multiple filamentation. Filamentation is a unique nonlinear optical phenomenon, which is accompanied by a wealth of nonlinear…

Optics · Physics 2023-06-29 Andrey Bulygin , Yury Geints

Rydberg atoms are remarkable tools for quantum simulation and computation. They are the focus of an intense experimental activity mainly based on low-angular-momentum Rydberg states. Unfortunately, atomic motion and levels lifetime limit…

Atomic Physics · Physics 2020-03-25 R. G. Cortiñas , M. Favier , B. Ravon , P. Méhaignerie , Y. Machu , J. M. Raimond , C. Sayrin , M. Brune

The ultrafast dynamics of ions in solids following intense femtosecond laser excitation is governed by two fundamentally distinct yet interplaying effects. On one hand, the significant generation of hot electron-hole pairs by the light…

Computational Physics · Physics 2024-01-22 Bernd Bauerhenne , Martin E. Garcia

Today's high-intensity laser facilities produce short pulses can, in tight focus, reach peak intensities of $10^{22}\,\mathrm{Wcm}^{-2}$ and, in long focus, wakefield-accelerate electrons to GeV energies. The radiation-reaction--dominated…

Plasma Physics · Physics 2015-06-25 T. G. Blackburn

The analytical and numerical approaches to the analysis of the ultrashort-pulse solid-state lasers are presented. The unique self-consistent method of the laser dynamics analysis is based on the symbolical, numerical, programming, and…

Optics · Physics 2007-05-23 V. L. Kalashnikov

We predict ultrafast modulation of the pure molten metal surface stress fields under the irradiation of the single femtosecond laser pulse through the two-temperature model molecular-dynamics simulations. High-resolution and precision…

Materials Science · Physics 2022-07-13 Chenhao Li , Hongtao Liang , Yang Yang , Zhiyong Yu , Xin Zhang , Xiangming Ma , Wenliang Lu , Zhenrong Sun , Ya Cheng

Ultrashort laser pulses that last only a few optical cycles have been transformative tools for studying and manipulating light--matter interactions. Few-cycle pulses are typically produced from high-peak-power lasers, either directly from a…

The plasma density grating induced by intersecting intense laser pulses can be utilized as an optical compressors, polarizers, waveplates and photonic crystals for the manipulation of ultra-high-power laser pulses. However, the formation…

Plasma Physics · Physics 2020-07-30 H. H. Ma , S. M. Weng , P. Li , X. F. Li , Y. X. Wang , S. H. Yew , M. Chen , P. McKenna , Z. M. Sheng

A survey of physical parameters and of a ladder of various regimes of laser-matter interactions at extreme intensities is given. Special emphases is made on three selected topics: (i) qualitative derivation of the scalings for probability…

Optics · Physics 2016-12-08 Alexander Fedotov
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