Ni-like collisional lasers using moderate power laser drivers

Physics of Plasmas 1:8 (1994) 2801-2803

Authors:

PA Norreys, A Djaoui

Abstract:

The hydrodynamic behavior of a Ta exploding foil using a double pulse in order to achieve favorable conditions for a Ni-like collisional x-ray laser with moderate driver energy have been examined in detail. It is shown that plasma conditions required for high gain lasing can be produced with 脳4 reduced laser power as compared with Maxon's scheme [Phys. Rev. Lett. 70, 2285 (1993)], provided that the second pulse is correctly timed and is delivered before transparency of the target to the incident laser light. This makes water window x-ray lasers within the reach of many moderately sized laser installations. 漏 1994 American Institute of Physics.

Optical ionization and heating of gases by intense picosecond KrF laser radiation

AIP Conference Proceedings AIP Publishing 318 (1994) 32-33

Authors:

AA Offenberger, W Blyth, AE Dangor, A Djaoui, MH Key, A Modena, Z Najmudin, SG Preston, JS Wark

Preliminary studies of radiation coupling between remote soft X-ray laser amplifiers

Applied Physics B Laser and Optics 58:1 (1994) 51-56

Authors:

G Cairns, CLS Lewis, AG MacPhee, D Neely, M Holden, J Krishnan, GJ Tallents, MH Key, PN Norreys, CG Smith, J Zhang, PB Holden, GJ Pert, J Plowes, SA Ramsden

Abstract:

Coupling of a soft X-ray laser beam with a relaying concave mirror in a sequentially pumped amplifier geometry using the Ne-like Ge system has been studied experimentally. Preliminary observations indicate an increase in the spatial coherence of the amplified relayed beam. In addition, near-field imaging of one of the amplifier plasmas shows a double-lobed intensity pattern of the emergent beam indicating refractive guiding of the amplified beam with components both normal and tangential to the target surface. 漏 1994 Springer-Verlag.

Progress in vacuum ultraviolet lasers

Progress in Quantum Electronics 18:3 (1994) 227-274

Authors:

SM Hooker, CE Webb

A review of opacity workshops

Journal of Quantitative Spectroscopy and Radiative Transfer Elsevier 51:1-2 (1994) 317-318