Intensity dependence of plateau structures in laser-assisted x-rayâ•fiatom scattering processes

Static-Electric-Field-Induced, High-Energy Plateau for Scattered X-Ray Photons in Laser-Assisted, X-Rayâ•fiAtom Scattering

Control of Intense Laser- Atom Processes With Strong Static Fields

We analyze the use of strong static electric and magnetic fields for controlling two intense laser-atom processes: laser-assisted x-ray-atom scattering and highorder harmonic generation. We find that x-rays scattered from atoms in the presence of both a strong laser field and a strong static electric field can be boosted in energy many-fold by absorption of energy from the laser field. The spec...

FAST TRACK COMMUNICATION Origin of species dependence of high-energy plateau photoelectron spectra

We analysed the energy and momentum distributions of high-energy ‘plateau’ photoelectrons. These electrons, with energies above 4Up (Up is the ponderomotive energy), have been understood qualitatively as due to the backscattering of laser-induced returning electrons by the target ion. Here, we establish a quantitative rescattering (QRS) theory to show that the species and laser-intensity depend...

Interaction of Laser Beam and Gold Nanoparticles, Study of Scattering Intensity and the Effective Parameters

 In this paper, the optical properties of gold nanoparticles investigated. For this purpose the scattering intensity of a laser beam incident on gold nanoparticles has been studied using Mie theory and their respective curves versus different parameters such as scattering angle, wavelength of the laser beam and the size of gold nanoparticles are plotted. Investigating and comparison of the depi...

Circularly polarized laser field-induced rescattering plateaus in electron-atom scattering

We analyze the laser ellipticity dependence of n-photon differential cross sections (dσn/dΩ) for electron-atom scattering in an intense elliptically polarized laser field. We show that there exist two plateau-like structures in the dependence of dσn/dΩ on n for any ellipticity, including for the case of circular polarization. We present numerical predictions for e-H scattering in a CO2-laser fi...