Patent ID: 7189976

Claim:
A high-speed particle generating method which condenses a pulsed laser beam generated from a pulsed laser beam generator at a predetermined condensing point through an irradiation optical system, and irradiates the pulsed laser beam to a high-speed particle generating target that is set at the predetermined condensing point, thereby generating high-speed particles from the high-speed particle generating target, said method further comprising the steps of: a first step of generating a reference light from the predetermined condensing point, measuring the wave front of the reference light by using a wave front measuring device, and storing the measured wave front as a reference wave front; a second step of measuring the wave front of the pulsed laser beam generated from said pulsed laser beam generator and passing through the predetermined condensing point by using said wave front measuring device; and a third step of compensating the wave front of the pulsed laser beam from said pulsed laser beam generator based on the reference wave front.