Y.K. Ho

TL;DR: It has been found that for a focused laser beam propagating in free space, there exists, surrounding the laser beam axis, a subluminous wave phase velocity region that Relativistic electrons injected into this region can be trapped in the acceleration phase and remain in phase with the laser field for sufficiently long times, thereby receiving considerable energy from the field.

TL;DR: In this paper, an absolute maximum of electron energy per laser interaction has been established, which depends on the accuracy of the used laser fields for which examples are presented and finally tested by the criterion of the absolute maximum.

TL;DR: A quantitative study of an effect, in which a low-energy free electron is captured and violently accelerated to GeV final kinetic energy by a stationary extra-high-intensity laser beam (Q0 identical witheE/m(e)omegac greater, similar100).

TL;DR: In this article, a short-pulsed laser of TEM (1, 0) + TEM(0, 1) was used to trap electrons in transverse and accelerate them with the longitudinal ponderomotive force at the same time.

TL;DR: In this paper, higher order corrections to the description of a Gaussian laser field are derived and expressed as power functions of the parameter s = 1/kw0, where k is the laser wave number and w 0 the beam width at the focus center.