论文标题
激光生产的纳米质产生的强烈多环形脉冲
Intense multicycle THz pulses generated by laser-produced nanoplasmas
论文作者
论文摘要
我们提出了一种新的方案，通过使用纳米二维的过度血浆靶标获得可靠，窄带和可调的THZ发射，该靶标被两个反向传播的可呼吸的激光脉冲所照射。到目前为止，尚无激光 - 固定相互作用的窄带THZ源具有GV/M级别的野外强度。我们报告了由于Beat频率（$ \ simeq $ 30thz）而产生的强烈的Thz脉冲，这是由于Beat Beat ponderomotive在撞车区域产生的强烈等离子体电流，其前所未有的高峰场强度为11.9gv/m，频谱宽度为11.9gv/m and Spectral Width $（ΔF/f $ f $ \ simeq $ 5.3 5.3 \％）。如此明亮的窄带THZ源适合各种雄心勃勃的应用。
We present a novel scheme to obtain robust, narrowband, and tunable THz emission by using a nano-dimensional overdense plasma target that is irradiated by two counter-propagating detuned laser pulses. So far, no narrowband THz sources with a field strength of GV/m-level have been reported from laser-solid interaction. We report intense THz pulses at beat-frequency ($\simeq$30THz) generated due to strong plasma current produced by the beat ponderomotive force in the colliding region, with an unprecedentedly high peak field strength of 11.9GV/m and spectral width $(Δf/f$$\simeq$$5.3\%)$ from 2D PIC simulations. Such an extremely bright narrowband THz source is suitable for various ambitious applications.
