Acceleration of electrons by a tightly focused intense laser beam.
The recent proposal to use Weinger transformation field (WTF) [Opt. Express 17, 4959-4969 (2009)] for describing tightly focused laser beams is investigated here in detail. In order to validate the accuracy of WTF, we derive the numerical field (NF) from the plane wave spectrum method. WTF is compared with NF and Lax series field (LSF). Results show that LSF is accurate close to the beam axis and divergent far from the beam axis, and WTF is always accurate. Moreover, electron dynamics in a tightly focused intense laser beam are simulated by LSF, WTF and NF, respectively. The results obtained by WTF are shown to be accurate.
Li
Jian-Xing
JX
The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics School, Nankai University, Tianjin 300071, China.
Zang
Wei-Ping
WP
Li
Ya-Dong
YD
Tian
Jian-Guo
JG
D000465:Algorithms; D055590:Electromagnetic Phenomena; D004583:Electrons; D007834:Lasers; D008280:Magnetics; D015233:Models, Statistical; D016011:Normal Distribution; D055095:Optics and Photonics; D011827:Radiation; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted