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Quantum Beam Sci. 2018, 2(1), 1;

Development of Focusing Plasma Mirrors for Ultraintense Laser-Driven Particle and Radiation Sources

SUPA Department of Physics, University of Strathclyde, Glasgow G4 0NG, U.K.
Central Laser Facility, STFC Rutherford Appleton Laboratory, Oxfordshire OX11 0QX, U.K.
Department of Physics, Durham University, South Road, Durham DH1 3LE, U.K.
Author to whom correspondence should be addressed.
Received: 17 November 2017 / Revised: 19 December 2017 / Accepted: 5 January 2018 / Published: 9 January 2018
(This article belongs to the Special Issue Laser-driven Quantum Beams)
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Increasing the peak intensity to which high power laser pulses are focused can open up new regimes of laser-plasma interactions, resulting in the acceleration of ions to higher energies and more efficient generation of energetic photons. Low f-number focusing plasma mirrors, which re-image and demagnify the laser focus, provide an attractive approach to producing higher intensities, without requiring significant changes to the laser system. They are small, enhance the pulse intensity contrast and eliminate the requirement to expose expensive optics directly to target debris. We report on progress made in a programme of work to design, manufacture and optimise ellipsoidal focusing plasma mirrors. Different approaches to manufacturing these innovative optics are described, and the results of characterisation tests are presented. The procedure developed to align the optics is outlined, together with initial results from their use with a petawatt-level laser. View Full-Text
Keywords: plasma optics; plasma mirrors; laser-driven proton acceleration; radiation sources plasma optics; plasma mirrors; laser-driven proton acceleration; radiation sources

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Wilson, R.; King, M.; Gray, R.J.; Carroll, D.C.; Dance, R.J.; Butler, N.M.H.; Armstrong, C.; Hawkes, S.J.; Clarke, R.J.; Robertson, D.J.; Bourgenot, C.; Neely, D.; McKenna, P. Development of Focusing Plasma Mirrors for Ultraintense Laser-Driven Particle and Radiation Sources. Quantum Beam Sci. 2018, 2, 1.

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