The Effect of Ponderomotive Force of a Laser Pulse on the Frequency Shift of its X-mode Propagation

2011 ◽  
Author(s):  
L. Shahrassai ◽  
S. Sobhanian ◽  
H. Khosravi ◽  
Muhammed Hasan Aslan ◽  
Ahmet Yayuz Oral ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Frequency Shift ◽  
Ponderomotive Force ◽  
Mode Propagation

Chirped Femtosecond Solitonlike Laser Pulse Form with Self-Frequency Shift

2002 ◽  
Vol 89 (26) ◽  
Author(s):  
Zhonghao Li ◽  
Lu Li ◽  
Huiping Tian ◽  
Guosheng Zhou ◽  
Karl H. Spatschek
Keyword(s):  
Laser Pulse ◽  
Frequency Shift ◽  
Pulse Form

Frequency shift of an intense laser pulse induced by plasma wave

2012 ◽  
Vol 680 ◽  
pp. 103-107 ◽  
Author(s):  
N.C. Pathak ◽  
G. Bussolino ◽  
C.A. Cecchetti ◽  
A. Giulietti ◽  
D. Giulietti ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Frequency Shift ◽  
Plasma Wave ◽  
Intense Laser ◽  
Intense Laser Pulse

scholarly journals Frequency shift of laser pulse propagating in wakefield

2004 ◽  
Vol 53 (1) ◽  
pp. 171
Author(s):  
Xu Han ◽  
Chang Wen-Wei ◽  
Yin Yan
Keyword(s):  
Laser Pulse ◽  
Frequency Shift

scholarly journals Relativistic acceleration of micro-foils with prospects for fast ignition

2012 ◽  
Vol 30 (2) ◽  
pp. 225-231 ◽  
Author(s):  
Shalom Eliezer
Keyword(s):  
Cylindrical Shell ◽  
Laser Pulse ◽  
Heat Wave ◽  
Ponderomotive Force ◽  
Picosecond Laser ◽  
Fast Ignition ◽  
Solid Target ◽  
Time Duration ◽  
Short Time

AbstractIn this work, it is suggested that the ponderomotive force, induced by a multi-petawatt laser on the interface of a vacuum with solid target, can accelerate a micro-foil to relativistic velocities. The extremely high velocities of the micro-foil can be achieved due to the very short time duration (about a picosecond) of the laser pulse. This accelerated micro-foil is used to ignite a pre-compressed cylindrical shell containing the deuterium tritium fuel. The fast ignition is induced by a heat wave produced during the collision of the accelerated foil with the pre-compressed target. This approach has the advantage of separating geometrically the nanoseconds lasers that compress the target with the picosecond laser that accelerates the foil.

Guided acceleration of nanoparticles by laser irradiated parallel gold nanorods

2021 ◽  
Author(s):  
Mamta Yadav ◽  
Ashok Kumar ◽  
Subhayan Mandal
Keyword(s):  
Laser Pulse ◽  
Electric Field ◽  
Pulse Duration ◽  
Gold Nanorods ◽  
Ponderomotive Force ◽  
Transverse Component ◽  
High State ◽  
Free Electrons ◽  
Axial Field ◽  
Axis Of Symmetry

Abstract Laser irradiated parallel gold nanorods with interspersed deuterium nanoparticles are shown to offer guided acceleration of nanoparticles. The laser pulse of intensity exceeding 1018W/cm2 at 1 μm wavelength and pulse duration ~30 fs causes full ionization of nanoparticles and high state ionization of gold atoms and pushes out the free electrons via the ponderomotive force. The charged nanorods have an electric field that has transverse component towards the axis of symmetry and axial field outwards. Thus the nanoparticles are accelerated axially while confined transversely. Deuterium beam of a few MeV energy can be produced by this technique.

scholarly journals Improvement of ion acceleration in radiation pressure acceleration regime by using an external strong magnetic field

2019 ◽  
Vol 37 (2) ◽  
pp. 217-222 ◽  
Author(s):  
H. Cheng ◽  
L. H. Cao ◽  
J. X. Gong ◽  
R. Xie ◽  
C. Y. Zheng ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Laser Pulse ◽  
Radiation Pressure ◽  
Longitudinal Magnetic Field ◽  
Ponderomotive Force ◽  
Two Dimensional ◽  
Particle In Cell ◽  
Combined Action ◽  
The Magnetic Field

AbstractTwo-dimensional particle-in-cell (PIC) simulations have been used to investigate the interaction between a laser pulse and a foil exposed to an external strong longitudinal magnetic field. Compared with that in the absence of the external magnetic field, the divergence of proton with the magnetic field in radiation pressure acceleration (RPA) regimes has improved remarkably due to the restriction of the electron transverse expansion. During the RPA process, the foil develops into a typical bubble-like shape resulting from the combined action of transversal ponderomotive force and instabilities. However, the foil prefers to be in a cone-like shape by using the magnetic field. The dependence of proton divergence on the strength of magnetic field has been studied, and an optimal magnetic field of nearly 60 kT is achieved in these simulations.

scholarly journals The effects of circularly polarized laser pulse on generated electron nano-bunches in oscillating mirror model

2014 ◽  
Vol 32 (2) ◽  
pp. 285-293 ◽  
Author(s):  
M. Shirozhan ◽  
M. Moshkelgosha ◽  
R. Sadighi-Bonabi
Keyword(s):  
Laser Pulse ◽  
Laser Plasma ◽  
Dense Plasma ◽  
Ponderomotive Force ◽  
Laser Pulses ◽  
Incident Laser ◽  
Circularly Polarized ◽  
Plasma Surface ◽  
Laser Plasma Interaction ◽  
Incident Laser Pulse

AbstractThe effects of the polarized incident laser pulse on the electrons of the plasma surface and on the reflected pulse in the relativistic laser-plasma interaction is investigated. Based on the relativistic oscillating mirror and totally reflecting oscillating mirror (TROM) regimes, the interaction of the intense polarized laser pulses with over-dense plasma is considered. Based on the effect of ponderomotive force on the characteristic of generated electron nano-bunches, considerable increasing in the localization and charges of nano-bunches are realized. It is found that the circularly polarized laser pulse have Ne/Ncr of 1500 which is almost two and seven times more than the amounts for P-polarized and S-polarized, respectively.

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