Prof Peter Norreys FInstP;: Publications

Applications of the wave kinetic approach: From laser wakefields to drift wave turbulence

Journal of Plasma Physics 76:6 (2010) 903-914

Authors:

RMGM Trines, R Bingham, LO Silva, JT Mendonça, PK Shukla, CD Murphy, MW Dunlop, JA Davies, R Bamford, A Vaivads, PA Norreys

Abstract:

Nonlinear wave-driven processes in plasmas are normally described by either a monochromatic pump wave that couples to other monochromatic waves, or as a random phase wave coupling to other random phase waves. An alternative approach involves a random or broadband pump coupling to monochromatic and/or coherent structures in the plasma. This approach can be implemented through the wave-kinetic model. In this model, the incoming pump wave is described by either a bunch (for coherent waves) or a sea (for random phase waves) of quasi-particles. This approach has been applied to both photon acceleration in laser wakefields and drift wave turbulence in magnetized plasma edge configurations. Numerical simulations have been compared to experiments, varying from photon acceleration to drift mode-zonal flow turbulence, and good qualitative correspondences have been found in all cases. © 2010 Cambridge University Press.

Design of the 10 PW OPCPA facility for the vulcan laser

Optics InfoBase Conference Papers (2010)

Authors:

I Musgrave, O Chekhlov, J Collier, R Clarke, A Dunne, S Hancock, R Heathcote, C Hernandez-Gomez, M Galimberti, A Lyachev, P Matousek, D Neely, P Norreys, I Ross, Y Tang, T Winstone, G New

Abstract:

We present the progress made in developing 10PW OPCPA facility for the Vulcan laser to produce pulses with focused intensities >1023 Wcm-2. This power level will be delivered by generating pulses with >300J in 30fs. These pulses will be delivered to two target areas: in one target area they will be combined with the existing Vulcan Petawatt beamline and a new target area will be created for high intensity interactions. © 2010 Optical Society of America.

Design of the 10 PW OPCPA facility for the vulcan laser

Optics InfoBase Conference Papers (2010)

Authors:

I Musgrave, O Chekhlov, J Collier, R Clarke, A Dunne, S Hancock, R Heathcote, C Hernandez-Gomez, M Galimberti, A Lyachev, P Matousek, D Neely, P Norreys, I Ross, Y Tang, T Winstone, G New

Abstract:

Experimental detection of post-soliton structures following high intensity laser interaction with a sub-critical gas jet

37th EPS Conference on Plasma Physics 2010, EPS 2010 3 (2010) 1960-1963

Authors:

G Sarri, DK Singh, JR Davies, KL Lancaster, EL Clark, S Hassan, J Jiang, N Kageiwa, N Lopes, A Rehman, C Russo, RHH Scott, T Tanimoto, Z Najmudin, KA Tanaka, M Tatarakis, M Borghesi, P Norreys

New developments in energy transfer and transport studies in relativistic laser-plasma interactions

Plasma Physics and Controlled Fusion 52:12 (2010)

Authors:

PA Norreys, JS Green, KL Lancaster, APL Robinson, RHH Scott, F Perez, HP Schlenvoight, S Baton, S Hulin, B Vauzour, JJ Santos, DJ Adams, K Markey, B Ramakrishna, M Zepf, MN Quinn, XH Yuan, P McKenna, J Schreiber, JR Davies, DP Higginson, FN Beg, C Chen, T Ma, P Patel

Abstract:

Two critical issues related to the success of fast ignition inertial fusion have been vigorously investigated in a co-ordinated campaign in the European Union and the United States. These are the divergence of the fast electron beam generated in intense, PW laser-plasma interactions and the fast electron energy transport with the use of high intensity contrast ratio laser pulses. Proof is presented that resistivity gradient-induced magnetic fields can guide fast electrons over significant distances in (initially) cold metallic targets. Comparison of experiments undertaken in both France and the United States suggests that an important factor in obtaining efficient coupling into dense plasma is the irradiation with high intensity contrast ratio laser pulses, rather than the colour of the laser pulse itself. © 2010 IOP Publishing Ltd.

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