91̽�� Centre for High Energy Density Science (OxCHEDS): publications

SIMULATIONS OF SPECTRA FROM DENSE ALUMINUM PLASMAS

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 54:1-2 (1995) 167-180

Authors:

DJ HEADING, JS WARK, GR BENNETT, RW LEE

Time resolved x-ray diffraction from shock-compressed solids

P SOC PHOTO-OPT INS 2521 (1995) 232-243

Authors:

JS WARK, NC WOOLSEY, RR WHITLOCK

VERTICAL DISPERSION MODE DOUBLE-CRYSTAL SPECTROMETER FOR ADVANCED SPECTROSCOPY OF LASER-PRODUCED PLASMA

REVIEW OF SCIENTIFIC INSTRUMENTS 66:5 (1995) 3234-3243

Authors:

O RENNER, M KOPECKY, JS WARK, H HE, E FORSTER

35 TW pulse generation for laser-plasma interaction studies

European Quantum Electronics Conference - Technical Digest (1994)

Authors:

DA Pepler, CN Danson, JRM Barr, LJ Barzanti, MD Ebbage, CB Edwards, MJ Gander, DC Hanna, DW Hughes, MHR Hutchinson, MH Key, AA Majdabadi, IP Mercer, D Neely, PA Norreys, et al

Abstract:

We report the development at the VULCAN Nd:glass laser at the Rutherford Appleton Laboratory of chirped pulse amplification (CPA) operation at 620 fs to give 35 TW in a single large aperture beam, with focused intensities on target in excess of 1019 Wcm-2. We present a technique to optimise the parallelism of the compression gratings, whereby two CW alignment beams at wavelengths of 1053 nm and 1064 nm were injected into the compressor.

Transient gain/loss in tunable solid-state vacuum ultraviolet laser media

Conference on Lasers and Electro-Optics Europe - Technical Digest (1994) 1-2

Authors:

JS Cashmore, SM Hooker, CE Webb

Abstract:

We have developed a model for the net induced gain as a function of pump fluence, based on a rate equation analysis of the populations of the 4f(n-1) 5d → 4f(n) level of the activator ions and of absorptive color centers. As an example, this has been applied to LiLuF4:Ce3+, in which we have also observed laser oscillation at 326.9 nm. The net gain is seen to rise rapidly with pump fluence before showing saturation and roll-off. This behavior can be explained by the creation of color centers that absorb strongly in the UV. We will present the results of similar measurements in the VUV on samples of LiYF4:Nd3+ and LaF3:Nd3+.

91̽��