Random phase plates for beam smoothing on the Nova laser.
Random phase plates for beam smoothing on the Nova laser.
复制标题
用于 Nova 激光器光束平滑的随机相位板。
作者：
S. Dixit;Ian M. Thomas;Bruce W. Woods;AJ Morgan;M. Henesian;P. Wegner;H. Powell
我们讨论了80厘米直径的随机相位板的设计和制造的目标平面光束平滑的新星激光器。随机相位板已被用于各种惯性约束聚变靶实验中，例如研究直接驱动流体动力学稳定性和产生空间平滑的X射线背光光源。这些相位板是通过使用我们开发的一种新的溶胶-凝胶浸涂技术。溶胶-凝胶相位板在Nd：玻璃激光的二次和三次谐波波长下具有高的光学损伤阈值，具有优异的光学性能。
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.