Phase-modulation laser-driving particle accelerating method and device thereof

The invention discloses a phase-modulation laser-driving particle accelerating method, which uses the laser to accelerate charged particle under vacuum conduction, when the laser acts on the charged particle, the laser is divided into an acceleration phase accelerating the charged particle and a deceleration phase decelerating the charged particle in a period; the method is mainly characterized in that the phase position of the laser is modulated before the laser acts on the charged particle, which leads the deceleration phase of the laser that is going to act on the charged particle to be changed into the acceleration phase which then acts on the charged particle. Through moderating the phase position of the intense laser pulse, the intense laser can directly accelerate the charged particle efficiently in vacuum with out needing to interact with plasma body, the structure is simple, the manufacturing of a phase modulation sheet is convenient, and therefore, the invention is beneficial for popularizing.