Inference of joule-class THz radiation sources from microchannel targets driven with hundreds of joule, picosecond lasers is reported. THz sources of this magnitude are useful for nonlinear pumping of matter and for charged-particle acceleration and manipulation. Microchannel targets demonstrate increased laser–THz conversion efficiency compared to planar foil targets, with laser energy to THz energy conversion up to ∼0.9%$\sim 0.9{\% }$ in the best cases.

中文翻译：

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来自微通道目标的焦耳级太赫兹脉冲

据报道，由数百焦耳、皮秒激光器驱动的微通道目标推断出焦耳级太赫兹辐射源。这种量级的太赫兹源对于非线性物质泵送以及带电粒子加速和操纵非常有用。与平面箔靶材相比，微通道靶材表现出更高的激光-太赫兹转换效率，激光能量到太赫兹能量的转换高达~ 0.9 %$\sim 0.9{\% }$在最好的情况下。