Diamond machining of a single shot ellipsoidal focusing plasma mirror

Bourgenot, Cyril; Crosby, D. N.; Robertson, David J.

doi:10.1117/12.2257414

Cited by 1 publication

(1 citation statement)

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“…The tool never leaves the surface and thereby minimises production time and the machine's axis motion amplitude. The ellipsoid shape has been designed to have a zero gradient at the centre to avoid possible cutting artefacts induced by residual tool offset and tool height, as reported in Bourgenot et al [26]. The following section presents the optical testing of the FPMs manufactured employing this process.…”

Section: Diamond Machiningmentioning

confidence: 99%

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

Wilson

King

Gray

et al. 2018

QuBS

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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.

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Section: Diamond Machiningmentioning

confidence: 99%