论文标题
通过从近临界密度的等离子体中转移相对激烈的辐射,产生同步的高强度X射线和中红外脉冲
Generation of synchronized high-intensity x-rays and mid-infrared pulses by Doppler-shifting of relativistically intense radiation from near-critical-density plasmas
论文作者
论文摘要
结果表明,当相对激烈的超短激光脉冲从具有接近临界密度的等离子体的边界反映出,多普勒频率转移会导致高频在高频中产生强烈的辐射,直至X射线,范围,范围和低频,低频,频率,中等频率,范围。能量转化至大于3 $μm的波长范围的效率可以达到数%,这使得在中红外范围内获得相对激烈的脉冲成为可能。这些脉冲在紫外线和X射线范围内与高谐波同步,这为高精度泵送测量值开辟了机会,尤其是激光诱导的电子衍射和瞬态吸收光谱。
It is shown that when relativistically intense ultrashort laser pulses are reflected from the boundary of a plasma with a near-critical density, Doppler frequency shift leads to generation of intense radiation both in the high-frequency, up to the X-ray, range, and in the low-frequency, mid-infrared, range. The efficiency of energy conversion into the wavelength range of greater than 3 $μ$m can reach several percent, which makes it possible to obtain relativistically intense pulses in the mid-infrared range. These pulses are synchronized with high harmonics in the ultraviolet and X-ray ranges, which opens up opportunities for high-precision pump-probe measurements, in particular, laser-induced electron diffraction and transient absorption spectroscopy.