Axial magnetic field generation by intense circularly polarized laser pulses in underdense plasmas

2010 ◽  
Vol 17 (8) ◽  
pp. 083109 ◽  
Author(s):  
N. Naseri ◽  
V. Yu. Bychenkov ◽  
W. Rozmus
Keyword(s):  
Magnetic Field ◽  
Axial Magnetic Field ◽  
Laser Pulses ◽  
Magnetic Field Generation ◽  
Circularly Polarized ◽  
Field Generation ◽  
Underdense Plasmas

scholarly journals Magnetic field generation by short ultraintense laser pulse in underdense plasmas

1996 ◽  
Vol 14 (1) ◽  
pp. 55-62 ◽  
Author(s):  
V. Yu. Bychenkov ◽  
V.T. Tikhonchuk
Keyword(s):  
Magnetic Field ◽  
Laser Pulse ◽  
Laser Pulses ◽  
Skin Depth ◽  
Beam Radius ◽  
Magnetic Field Generation ◽  
Field Generation ◽  
Underdense Plasmas ◽  
Magnetic Field Magnitude ◽  
The Magnetic Field

The theory of magnetic field generation due to the interaction of short relativistic laser pulses with underdense plasmas has been developed. The magnetic field is generated due to the inverse Faraday effect occurring witha circularly polarized laser pulse. The spatial distribution of the magnetic field is investigated. It is shown that the magnetic field magnitude depends on the relationship between the laser beam radius and the plasma skin-depth.

Laser-pulse shape effects on magnetic field generation in underdense plasmas

2018 ◽  
Vol 92 (7) ◽  
pp. 919-925 ◽  
Author(s):  
Krishna Gopal ◽  
Md. Ali Raja ◽  
Devki Nandan Gupta ◽  
K. Avinash ◽  
Suresh C. Sharma
Keyword(s):  
Magnetic Field ◽  
Laser Pulse ◽  
Pulse Shape ◽  
Magnetic Field Generation ◽  
Field Generation ◽  
Underdense Plasmas ◽  
Shape Effects ◽  
Laser Pulse Shape

Axial magnetic field generation by ponderomotive force in a laser‐produced plasma

1992 ◽  
Vol 4 (12) ◽  
pp. 4086-4093 ◽  
Author(s):  
M. K. Srivastava ◽  
S. V. Lawande ◽  
Manoranjan Khan ◽  
Chandra Das ◽  
B. Chakraborty
Keyword(s):  
Magnetic Field ◽  
Ponderomotive Force ◽  
Axial Magnetic Field ◽  
Magnetic Field Generation ◽  
Field Generation ◽  
Laser Produced Plasma

scholarly journals Electronic Currents and Magnetic Fields in H2+ Induced by Coherent Resonant Bichromatic Circularly Polarized Laser Pulses: Effects of Orientation, Phase, and Helicity

2021 ◽  
Vol 9 ◽  
Author(s):  
André D. Bandrauk ◽  
Szczepan Chelkowski ◽  
Kai-Jun Yuan
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Numerical Solutions ◽  
Resonant Excitation ◽  
Electron Dynamics ◽  
Magnetic Field Generation ◽  
Phase Dependence ◽  
Circularly Polarized ◽  
Field Generation ◽  
Pulse Phase

We theoretically study pulse phase and helicity effects on ultrafast magnetic field generation in intense bichromatic circularly polarized laser fields. Simulations are performed on the aligned molecular ion H2+ from numerical solutions of corresponding time-dependent Schrödinger equations. We demonstrate how electron coherent resonant excitation influences the phase and helicity of the optically induced magnetic field generation. The dependence of the generated magnetic field on the pulse phase arises from the interference effect between multiple excitation and ionization pathways, and is shown to be sensitive to molecular alignment and laser polarization. Molecular resonant excitation induces coherent ring electron currents, giving enhancement or suppression of the phase dependence. Pulse helicity effects control laser-induced electron dynamics in bichromatic circular polarization excitation. These phenomena are demonstrated by a molecular attosecond photoionization model and coherent electron current theory. The results offer a guiding principle for generating ultrafast magnetic fields and for studying coherent electron dynamics in complex molecular systems.

Sign in / Sign up

Export Citation Format

Share Document