Analysis of the pulse widths on radiation properties from an electron driven by intense elliptically polarized laser

In this paper, a model of electron electromagnetic radiation is established using Lorentz formula for the interaction tightly focused elliptically polarized laser with single under condition nonlinear Thomson scattering. Let initial pulse width $${\kern 1pt} \lambda_{0} {\kern 1pt}$$ be 3.3 fs. By changing $$L$$ , energy distribution and space emitted by different conditions are obtained. The results show that when interacts electron, accumulates in cone shape space. With increase L$$ peak bimodal, power drops. At same time, longer it takes to reach peak, frequency spectrum time function high-frequency component decreases, cutoff harmonic increases.