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Pulse self-compression is a simple and economical method for improving the peak power of ultra-intense laser pulses. By solving a modified nonlinear Schrodinger equation considering the fifth-order susceptibility, we found that…

Optics · Physics 2023-09-12 Renjing Chen , Wenhai Liang , Yilin Xu , Xiong Shen , Peng Wang , Jun Liu , Ruxin Li

Recently, several eclipsing millisecond pulsars have been shown to experience strong and apparent weak lensing from the outflow of their ionized companions. Lensing can be a powerful probe of the ionized plasma, with the strongest lenses…

High Energy Astrophysical Phenomena · Physics 2022-12-07 Fang Xi Lin , Robert Main , Dylan Jow , Dongzi Li , Ue-Li Pen , Marten H. van Kerkwijk

We have commenced experiments with intense short pulses of ion beams on the Neutralized Drift Compression Experiment-II at Lawrence Berkeley National Laboratory, by generating beam spots size with radius r < 1 mm within 2 ns FWHM and…

We propose to use ultra-high intensity laser pulses with wavefront rotation (WFR) to produce short, ultra-intense surface plasma waves (SPW) on grating targets for electron acceleration. Combining a smart grating design with optimal WFR…

Plasma Physics · Physics 2021-02-24 S. Marini , P. S. Kleij , F. Pisani , F. Amiranoff , M. Grech , A. Macchi , M. Raynaud , C. Riconda

The simultaneous laser-driven acceleration and angular manipulation of the fast electron beam is experimentally demonstrated. The bunch of multi-MeV energy charged particles is generated during the propagation of the femtosecond laser pulse…

Plasma Physics · Physics 2023-10-19 K. Ivanov , D. Gorlova , I. Tsymbalov , I. Tsygvintsev , S. Shulyapov , R. Volkov , A. Savelev

The emission from an electron in the field of a relativistically strong laser pulse is analyzed. At the pulse intensities of \ge 10^{22} W/cm^2 the emission from counter-propagating electrons is modified by the effects of Quantum…

Laser-plasma acceleration is an emerging technique for accelerating electrons to high energies over very short distances. The accelerated electron bunches have femtosecond duration, making them particularly relevant for applications such as…

We derive the force of the electromagnetic radiation on material objects by a direct application of the Lorentz law of classical electro-dynamics. The derivation is straightforward in the case of solid metals and solid dielectrics, where…

Optics · Physics 2013-12-12 Masud Mansuripur

A theoretical study of laser and plasma based electron acceleration is presented. An effective model has been used, in which the presence of an underdense plasma has been taken account via its index of refraction $n_{m}$. In the confines of…

Plasma Physics · Physics 2015-10-14 Mihály András Pocsai , Imre Ferenc Barna , Sándor Varró

In this work, we experimentally investigate the suspension behavior of droplets subjected to standing acoustic waves. We focus on the droplet sizes beyond the Rayleigh limit, i.e., when the droplet size is comparable to the wavelength of…

Fluid Dynamics · Physics 2023-08-09 Jeyapradhap Thirisangu , E Hemachandran , Karthick Subramani

We study the suppression of superconductivity with ultrashort laser pulse in the presence of transport current. The theoretical model is based on the BCS relations for the superconducting state coupled with kinetic equations for…

Superconductivity · Physics 2021-03-17 P F Kartsev , I O Kuznetsov

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

Relativistic flying mirrors in plasmas are realized as thin dense electron (or electron-ion) layers accelerated by high-intensity electromagnetic waves to velocities close to the speed of light in vacuum. The reflection of an…

Plasma Physics · Physics 2016-08-03 Sergei V. Bulanov , Timur Zh. Esirkepov , Masaki Kando , James K. Koga

Slow swift electrons with low self-inertia interact differently with matter and light in comparison with their relativistic counterparts: they are easily recoiled, reflected, and also diffracted form optical gratings and nanostructures. As…

Quantum Physics · Physics 2016-12-21 Nahid Talebi

We present a theoretical calculation of the Lifshitz-van der Waals force between two metallic slabs embedded in a fluid, taking into account the change of the Drude parameters of the metals when in contact with liquids of different index of…

Quantum Physics · Physics 2015-05-19 R. Esquivel-Sirvent

We investigate lensing and waveguiding properties of an atomic Bose-Einstein condensate for ultraslow pulse generated by electromagnetically induced transparency method. We show that a significant time delay can be controllably introduced…

Optics · Physics 2011-03-25 Devrim Tarhan , Alphan Sennaroglu , Ozgur E. Mustecaplioglu

A mechanical beam chopper consists of a rotating disc of regularly spaced wide slits which allow light to pass through them. A continuous light beam, after passing through the rotating disc, is switched-on and switched-off periodically, and…

Instrumentation and Detectors · Physics 2018-06-28 Samridhi Gambhir , Mandip Singh

We present a numerical study of the effect that fluid and particle inertia have on the motion of suspended spherical particles through a geometric constriction to understand analogous microfluidic settings, such as pinched flow…

Fluid Dynamics · Physics 2013-06-20 Sumedh R. Risbud , Mingxiang Luo , Joelle Frechette , German Drazer

A scheme to realize an electron interferometer using low-intensity, bi-chromatic laser pulses as beam splitter is proposed. The splitting process is based on a modification of the Kapitza-Dirac effect, which produces a momentum kick for…

Quantum Physics · Physics 2013-10-18 Karl-Peter Marzlin

The advent of ultrafast science with pulsed electron beams raised the need in controlling the temporal features of the electron pulses. One promising suggestion is the nano-selective quantum optics with multi-electrons, which scales…

Optics · Physics 2023-08-07 Yarden Mazor , Ofer Kfir