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Conferences > CLEO_SI > 2013 > CTu2D > CTu2D.4

Novel Contrast Enhancement of Astra-Gemini Laser Facility

Y. Tang, C. J. Hooker, O. V. Chekhlov, S. Hawkes, B. Parry, K. Ertel, J. Collier, and P. P. Rajeev

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Abstract

We report on the recent contrast enhancement of Astra-Gemini laser. It is shown that the stretcher gratings contribute significantly to the contrast pedestal. Implementing higher-quality gratings resulted in a significant contrast improvement. We have also investigated and quantified the contribution to the contrast pedestal from each individual grating in the stretcher.

© 2013 Optical Society of America

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