Volume 117, Number 4, February 2017
|Number of page(s)||6|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||18 April 2017|
Thomson backscattering in combined fields with a general elliptical polarization
1 Key Laboratory of Beam Technology and Materials Modification of the Ministry of Education, and College of Nuclear Science and Technology, Beijing Normal University - Beijing 100875, China
2 College of Applied Science, Beijing University of Technology - Beijing 100124, China
3 Beijing Radiation Center - Beijing 100875, China
Received: 2 March 2017
Accepted: 4 April 2017
Thomson backscattering in combined fields with a general elliptical polarization of laser field and an applied constant magnetic field is studied. The monotonous and non-monotonous dependence of emission spectra on the ellipticity and the initial phase of laser field are found. We have also revealed the scaling law of the radiation spectra about the initial axial momentum in the general elliptic polarized case that is similar to the circularly polarized one. However, the scaling law about the laser intensity exists conditionally and the scale invariance about the magnetic resonance parameter exists, too. Another interesting feature is the feasibility to obtain the THz radiation by this scheme.
PACS: 41.60.-m – Radiation by moving charges / 42.65.Ky – Frequency conversion; harmonic generation, including higher-order harmonic generation / 52.25.Tx – Emission, absorption, and scattering of particles
© EPLA, 2017
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