Development of the 50 TW laser for joint experiments with 1 MA z-pinches
Development of the 50 TW laser for joint experiments with 1 MA z-pinches
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开发用于 1 MA z 箍缩联合实验的 50 TW 激光器
DOI：
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发表时间：
2010
期刊：
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通讯作者：
O. Chalyy
中科院分区：
文献类型：
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作者：
P. Wiewior;V. Ivanov;O. Chalyy
在里诺的内华达州大学研制了一台50 TW高强度激光器（又名“Leopard”激光器），用于1 MA z箍缩发生器的实验。激光器产生0.35 ps的短脉冲;能量为15 J。长脉冲为1 ns;能量为30 J。输出光束直径为80 mm。Leopard激光器采用啁啾脉冲放大技术。该激光器是基于130 fs的钛：蓝宝石振荡器，Offner型展宽器，钛：蓝宝石再生放大器，混合钕玻璃棒和盘放大器，和真空光栅压缩器。自适应光学系统改善了聚焦能力并增加了重复率。两个光束终端可用于实验：z箍缩发生器的真空室（又名“Zebra”）和激光专用真空室（又名“Phoenix”室）。豹激光器耦合到斑马z箍缩发生器是一个强大的诊断工具，密集的z箍缩等离子体。我们概述了Leopard激光器的现状、设计、结构和参数，以及它与Zebra的耦合。我们提出了基于激光的z箍缩等离子体诊断的方法，这是在内华达州，里诺大学正在开发中。
A 50 TW high-intensity laser (aka "Leopard" laser) was developed for experiments with the 1 MA z-pinch generator at the University of Nevada, Reno. The laser produces short pulses of 0.35 ps; energy is 15 J. Long pulses are 1 ns; energy is 30 J. The output beam diameter is 80 mm. The Leopard laser applies chirped pulse amplification technology. The laser is based on the 130 fs Ti:Sapphire oscillator, Offner-type stretcher, Ti:Sapphire regenerative amplifier, mixed Nd:glass rod and disk amplifiers, and vacuum grating compressor. An adaptive optics system ameliorates focusing ability and augments the repetition rate. Two beam terminals are available for experiments: in the vacuum chamber of the z-pinch generator (aka "Zebra"), and a laser-only vacuum chamber (aka "Phoenix" chamber). The Leopard laser coupled to the Zebra z-pinch generator is a powerful diagnostic tool for dense z-pinch plasma. We outline the status, design, architecture and parameters of the Leopard laser, and its coupling to Zebra. We present the methods of laser-based z-pinch plasma diagnostics, which are under development at the University of Nevada, Reno.