Diamond machining of a single shot ellipsoidal focusing plasma mirror

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

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

Bourgenot, C., Crosby, D., & Robertson, D. (2017, January). Diamond machining of a single shot ellipsoidal focusing plasma mirror. Presented at Optics and Measurement International Conference 2016, Liberec

• Presentation Conference Type: Conference Paper (published)
• Conference Name: Optics and Measurement International Conference 2016
• Online Publication Date: Jan 12, 2017
• Publication Date: Nov 11, 2016
• Deposit Date: Feb 13, 2018
• Publicly Available Date: Aug 16, 2018
• Volume: 10151
• Series Title: Proceedings of SPIE
• Series ISSN: 0277-786X,1996-756X
• Book Title: Optics and Measurement International Conference 2016
• ISBN: 97815106072
• DOI: https://doi.org/10.1117/12.2257414
• Public URL: https://durham-repository.worktribe.com/output/1145915