论文标题
仪表尺度等离子体波导的光学引导
Optical guiding in meter-scale plasma waveguides
论文作者
论文摘要
我们展示了一种新的高度可调技术，用于生成仪表尺度的低密度等离子体波导。这样的指南可以在一个阶段中使电子加速至数十亿GEV。血浆波导通过两个时间分离的贝塞尔束脉冲诱导的光场电离将其刻在氢气中：第一个脉冲，一个J_0梁，产生波导的核心，而延迟的第二脉冲（在此处为j_8或J_16梁）产生了波导层。我们演示了数百个雷利长度的强烈激光脉冲指导，轴等离子体密度低至N_E0 = 5x10^16 cm^-3。
We demonstrate a new highly tunable technique for generating meter-scale low density plasma waveguides. Such guides can enable electron acceleration to tens of GeV in a single stage. Plasma waveguides are imprinted in hydrogen gas by optical field ionization induced by two time-separated Bessel beam pulses: The first pulse, a J_0 beam, generates the core of the waveguide, while the delayed second pulse, here a J_8 or J_16 beam, generates the waveguide cladding. We demonstrate guiding of intense laser pulses over hundreds of Rayleigh lengths with on axis plasma densities as low as N_e0=5x10^16 cm^-3.
