High gain recombination XUV lasers and efficient XUV harmonics from ps laser pulse interactions with solid targets
INST PHYS CONF SER (1996) 122-129
Abstract:
We present recent developments on high gain recombination XUV lasers and efficient XUV harmonics from solid targets using the CPA Vulcan laser beam at the Rutherford Appleton Laboratory (RAL). Following successful experiments on the hydrogen-like carbon recombination laser at 18.2 nm, high gain operation has also been demonstrated at 11.1 nm in the sodium-like copper recombination XUV laser by irradiating thin fibre targets at intensities of 6x10(15) Wcm(-2) with 2 ps laser pulses. This experiment has shown that 2 ps is the optimum pulse duration to drive the sodium-like copper laser. In addition to the recombination laser experiments, highly efficient harmonics up to 75th order at 14.0 nm have been observed in the interaction of 2 ps laser pulses with solid targets for intensities up to 10(19) Wcm(-2). The conversion efficiency is estimated to be greater than or equal to 10(-6) at 10(19) Wcm(-2) for harmonic orders up to the 68th.High-order harmonics of 248.6-nm KrF laser from helium and neon ions
PHYSICAL REVIEW A 53:1 (1996) R31-R34
Measurements of the hole boring velocity from Doppler shifted harmonic emission from solid targets
PHYSICS OF PLASMAS 3:9 (1996) 3242-3244
Radiography measurements of direct drive imprint in thin Al foils using a bright XUV laser
INST PHYS CONF SER (1996) 509-511
Abstract:
A saturated XUV laser operating on the J=0-1, 19.6nm transition of Ne-like Germanium provided an excellent source to provide in-line backlighting for 2D imaged radiography. The imprint of a direct drive laser beam and subsequent Rayleigh-Taylor growth of perturbations in a 2 mu m thick Al foil, irradiated with 0.53 mu m laser light at 2-8x10(12) W/cm(2), was investigated. Measurements are presented for the modulation Slue to random phase plate static speckle, SSD smoothed and ISI smoothed speckle. In addition we present a study of single mode optical imprint generated by the interference pattern of a double rectangular aperture.Research on compact, bright, coherent x-ray sources at RAL
P SOC PHOTO-OPT INS 2778 (1996) 1199-1200