Patent ID: 8649086
Filing Date: 2014-02-11
Classification: H01S,H05G

Abstract:
1. A method for generating high-intensity optical pulses comprising: generating an ultrashort pulsed beam including ring-shaped optical pulses having optical intensity distributions peaking at a radius greater than 0.5 mm from a central propagation axis; directing the ring-shaped optical pulses into an enhancement cavity comprising a plurality of focusing mirrors, including a first apertured mirror and second apertured mirror, each of which defines a central aperture with a diameter greater than 1 mm; reflecting the optical pulses with the mirrors in a closed loop inside the enhancement cavity, the peak intensity of the optical pulses striking the apertured mirrors about the central apertures, the optical pulses additively combining in the enhancement cavity to produce an enhanced optical pulse of higher energy; directing at least one charged particle into the enhancement cavity through the central aperture in the first apertured mirror, the enhanced optical pulse colliding with the charged particle and transferring energy to the charged particle to accelerate the charged particle; and allowing the accelerated charged particle to exit the enhancement cavity, wherein the accelerated charged particle passes through the central aperture of the second apertured mirror as the accelerated charged particle exits the enhancement cavity.