Diamond machining of a single shot ellipsoidal focusing plasma mirror

C. Bourgenot; D. N. Crosby; D. J. Robertson

doi:10.1117/12.2257414

11 November 2016 Diamond machining of a single shot ellipsoidal focusing plasma mirror

C. Bourgenot, D. N. Crosby, D. J. Robertson

Proceedings Volume 10151, Optics and Measurement International Conference 2016; 1015108 (2016) https://doi.org/10.1117/12.2257414
Event: Optics and Measurement 2016 International Conference, 2016, Liberec, Czech Republic

Abstract

Plasma mirrors have become an important tool in high power laser physics due to their ability to suppress laser pre-pulses and amplified spontaneous emission allowing a cleaner and sharper rising edge pulse to be focused onto a target. A PMMA ellipsoidal plasma mirror used to increase the peak intensity of a high power laser pulses before it reaches the target is presented. The ellipse has been designed to increase by a factor 3, between input and output, the F-number of the beam, inducing in theory a factor 9 gain in peak intensity. Diamond machining, which is a technique capable of producing sub-micron accuracy on steep, freeform surfaces, is an ideal process for manufacturing these types of mirrors. In this paper, we discuss the diamond machining requirements to manufacture such near diffraction limited high numerical aperture mirrors.

Citation Download Citation

C. Bourgenot, D. N. Crosby, and D. J. Robertson "Diamond machining of a single shot ellipsoidal focusing plasma mirror", Proc. SPIE 10151, Optics and Measurement International Conference 2016, 1015108 (11 November 2016); https://doi.org/10.1117/12.2257414

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