Random phase plates for beam smoothing on the Nova laser
- 10 May 1993
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 32 (14) , 2543-2554
- https://doi.org/10.1364/ao.32.002543
Abstract
We discuss the design and fabrication of 80-cm-diameter random phase plates for target-plane beam smoothing on the Nova laser. Random phase plates have been used in a variety of inertial confinement fusion target experiments, such as studying direct-drive hydrodynamic stability and producing spatially smooth x-ray backlighting sources. These phase plates were produced by using a novel sol-gel dip-coating technique developed by us. The sol-gel phase plates have a high optical damage threshold at the second- and third-harmonic wavelengths of the Nd:glass laser and have excellent optical performance.Keywords
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