Oxford Centre for High Energy Density Science (OxCHEDS)

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Experiments of the saturated Ni-like x-ray lasers driven by a double 75 ps laser pulse

INST PHYS CONF SER 159 (1999) 67-70

Authors:

J Zhang, E Wolfrum, A MacPhee, J Lin, MH Key, CLS Lewis, J Nilsen, RMN O'Rourke, R Smith, GJ Tallents, JS Wark

Abstract:

We report here the experiments of the saturated Ni-like x-ray lasers at 14 -6 nm from a refraction compensating double target driven at 20 TW.cm(-2) by a pair of 75 ps Nd-glass laser pulses separated by 2.2 ns. The output source size as well as the time history, divergence, energy and spatial profile of the output beams of the Ni-like x-ray lasers have been fully characterised. The narrow divergence (similar to 1 mrad), short pulse duration (similar to 40 ps), high efficiency (similar to 10(-6)) and high brightness (similar to 10(25) photons.s(-1).mm(-2).mrad(-2) of these Ni-like x-ray lasers make them ideal candidates for x-ray laser applications.
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Gain evaluation for the Ni-like tantalum X-ray laser

X-RAY LASERS 1998 159 (1999) 383-386

Authors:

EP Ivanova, IP Grant, SJ Rose
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Impulsive Coherent Control of X-rays in Bragg Crystals

Optica Publishing Group (1999) wc2

Authors:

RW Falcone, PH Bucksbaum, Z Chang, P Heimann, S Johnson, I Kang, H Kapteyn, RW Lee, A Lindenberg, R Merlin, Th Missalla, M Murnane, H Padmore, J Wark
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KeV spectroscopic diagnostic for the performance of Ni-like x-ray lasers

INST PHYS CONF SER 159 (1999) 471-474

Authors:

J Zhang, E Wolfrum, J Lin, A Djaoui, CLS Lewis, A MacPhee, G Cairns, RMN O'Rourke, R Smith, GJ Tallents, JS Wark

Abstract:

In order to understand the improved performance of Ni-like x-ray lasers driven by a double 75 ps laser pulse, a systematic study on keV emission from plasmas generated by different drive pulse configurations has been made. Significant changes in temperatures and relative abundances of the ionisation stages for different drive pulse configurations have been found with the help of numerical simulations.
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Optimization of double pulse pumping for Ni-like Sm x-ray lasers

JOURNAL OF APPLIED PHYSICS 85:2 (1999) 672-675

Authors:

JY Lin, GJ Tallents, R Smith, AG MacPhee, E Wolfrum, J Zhang, G Eker, R Keenan, CLS Lewis, D Neely, RMN O'Rourke, GJ Pert, SJ Pestehe, JS Wark
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