scholarly journals Free Scattering Theory in Circularly Polarized Laser Field

2017 ◽  
Vol 4 (1) ◽  
pp. 78
Author(s):  
Kishori Yadav ◽  
Jeevan Jyoti Nakarmi ◽  
Sanam Maharjan
Keyword(s):  
Kinetic Energy ◽  
Cross Section ◽  
Laser Field ◽  
Scattering Amplitude ◽  
Scattering Cross Section ◽  
Hydrogen Atoms ◽  
Circularly Polarized ◽  
Differential Scattering Cross Section ◽  
Scattering Cross ◽  
Elastic Scattering Amplitude

<p class="Default">In the present study, we have investigated scattering of an electron by hydrogen atoms in the presence of the Circularly Polarized (CP) laser field. We have discussed the polarization effect of laser field on hydrogen atom and effect of the resulted polarized potential on differential scattering cross section is studied. We assumed the scattered electrons having kinetic energy 100 eV because it permitted to treat the scattering process in first order Born Approximation. The scattering electron was described by Volkov wave function. We found the differential scattering cross section decreases with the increase in scattering angle, for a fixed value of a laser parameters and kinetic energy of an incident electron. From this study we found that, the differential scattering cross section for the electric field perpendicular to the direction of momentum transfer depends on the elastic scattering amplitude. Finally, we concluded that the differential scattering cross section greatly depends upon the polarization of the laser field.</p><p><strong>Journal of Nepal Physical Society</strong><br />Volume 4, Issue 1, February 2017, Page: 78-87</p>

scholarly journals Elliptically polarized laser assisted elastic electron-hydrogen atom collision and differential scattering cross-section

2020 ◽  
pp. 93-102
Author(s):  
Kishori Yadav ◽  
S.P. Gupta ◽  
J.J. Nakarmi
Keyword(s):  
Hydrogen Atom ◽  
Kinetic Energy ◽  
Cross Section ◽  
Laser Field ◽  
High Energy ◽  
Scattering Cross Section ◽  
Hydrogen Atoms ◽  
Differential Scattering Cross Section ◽  
Scattering Cross ◽  
Cross Section Area

In the present study, we have investigated scattering of an electron by hydrogen atoms in the presence of the elliptical polarized laser field. We have discussed the polarization effect of laser field on hydrogen atom and effect of the resulted polarized potential on differential scattering cross-section is studied. We assume the scattered electrons having kinetic energy (~3000 eV) and laser field of moderate field strength because it is permitted to treat the scattering process in first Born approximation and the scattering electron was described by Volkov wave function. We found that the differential scattering cross-section area increases with the increase of the kinetic energy of the incident electron and there is no effect of changing the value of polarizing angle on the differential cross-section with kinetic energy. We observed that differential scattering cross-section in elliptical polarization in the high energy region depends upon the laser intensity and the incident energy for a linearly polarized field.

scholarly journals Differential scattering cross section of the dense semiclassical plasma based on the Born method

2020 ◽  
Vol 73 (2) ◽  
pp. 34-40
Author(s):  
E.O. Shalenov ◽  
Zh. Kossymkyzy ◽  
M. Seisembayeva ◽  
R. Masheyeva ◽  
M.N. Jumagulov ◽  
...  
Keyword(s):  
Cross Section ◽  
Scattering Cross Section ◽  
Differential Scattering Cross Section ◽  
Scattering Cross

Numerical Calculation of Optical Properties of Linear Nano-Graphite Particles

2012 ◽  
Vol 538-541 ◽  
pp. 877-881
Author(s):  
Ya Feng Liu ◽  
Chao Jun Huang
Keyword(s):  
Cross Section ◽  
Incident Angle ◽  
Incident Light ◽  
Efficiency Factor ◽  
Scattering Cross Section ◽  
Differential Scattering Cross Section ◽  
Extinction Efficiency ◽  
Graphite Particles ◽  
Scattering Cross ◽  
Variation Tendency

Using the discrete dipole approximation method, the absorption, scattering, extinction efficiency factor and differential scattering cross section of four kinds of nano-graphite particles under different incident angle are numerical calculated, the result shown that the value of the absorption, scattering, extinction efficiency factor and differential scattering cross section of linear nano-graphite particles are symmetric on the incident angle. There are the same variation tendency of absorption and extinction efficiency factor changed with the incident angle, when the incident light parallel with the linear nano-graphite particles, both the absorption and extinction are the strongest, and when the incident light perpendicular the linear nano-graphite particles, both the absorption and extinction are the weakest. The variation tendency of scattering efficiency factor changed with incident angle depended on the number of single graphite and the arrangement of linear nano-graphite particles. The value of differential scattering cross section is the smallest while the incident light parallel with the linear nano-graphite particles, however, the biggest while the incident light perpendicular the linear nano-graphite particles.

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