Inventors:
John M. Dawson - Pacific Palisades CA
Scott C. Wilks - Santa Monica CA
Warren B. Mori - Hermosa Beach CA
Chandrasekhar J. Joshi - Santa Monica CA
Andrew M. Sessler - Oakland CA
Assignee:
Regents of the University of California - Oakland CA
International Classification:
H01S 300
H03F 700
Abstract:
Photons of an electromagnetic source wave are frequency-upshifted as a plasma is rapidly created around the path of this propagating source wave. The final frequency can be controlled by adjusting the gas density. A controlled time-varying frequency (chirped) pulse can be produced by using a controlled spatially varying gas density. The plasma must be created in a time which is short compared to the transit time of the light through the plasmas region. For very fast creation over one to at most a few light periods of an overdense plasma, static magnetic fields with short wavelengths are created.