Near-field-smoothing of periodic chirped pulse with applied angular dispersion

Periodic chirped pulse (PCP) with applied angular dispersion has been approved to be an efficient beam smoothing method in inertial confinement fusion. In this paper, the propagation characteristics of dispersed PCP in near field is analyzed theoretically and calculated numerically, and the results indict dispersed PCP is a motion beam, which can be applied to improve beam uniformity in near field. An experiment is carried out to validate the near-field-intensity smoothing effect of PCP.

Research Highlights
► The motion characteristic of periodic chirped pulse (PCP) with applied angular dispersion is studied theoretically and numerically.
► We introduce the dispersed PCP can be applied to improve beam uniformity in near field.
► An experiment is carried out to validate the near-field-intensity smoothing effect of PCP with applied angular dispersion.