The characteristic parameters as well as self-generated electric and magnetic fields of Nd:YAG laser (532 nm, 10 ns) ablated Al plasma have been measured by employing Langmuir, electric and magnetic probes, respectively. Plasma parameters such as electron temperature (\({T}_{e}\)) and electron number density (\({n}_{e}\)) as well as SGEMFs of Al plasma are measured as a function of laser irradiance ranging from 5.2 to 9.4 GW/cm² at fixed probes to target distance of 10 mm. Both \({T}_{e}\) and \({n}_{e}\) of Al plasma show an increasing trend with the increase of laser irradiance and vary from 8 to 11 eV and 3.9 × 10¹⁴ to 7.07 × 10¹⁴/cm³, respectively. The SGEMFs show an overall increasing trend with the increase of laser irradiance and a decreasing trend with increasing probe to plume distances. The evaluated values of SGEMFs vary from 50 to 380 V/m and 89 to 165 G. The growth of SGEMFs has been explained on the basis of quadrupole distribution of charges at leading and trailing fronts of expanding plasma. By controlling plasma parameters such as electron temperature and electron density, laser generated plasmas can be efficiently used as sources of pulsed electric and magnetic fields in wake field accelerators.

Nd：YAG激光（532 nm，10 ns）烧蚀的Al等离子体的特征参数以及自生电场和磁场已分别通过使用Langmuir，电和磁探针进行了测量。测量Al等离子体的电子温度（\（{T} _ {e} \））和电子数密度（\（{n} _ {e} \））等等离子体参数以及SGEMF作为激光的函数固定探头的辐照度范围为5.2至9.4 GW / cm ²，目标距离为10 mm。两个\（{T】_ {E} \）和\（{N} _ {E} \）的Al的等离子体显示出与激光辐照度的增加有增加的趋势，并从8至11 eV和3.9×10变化¹⁴到7.07×10 ¹⁴ /厘米³， 分别。随着激光辐照度的增加，SGEMF呈现出总体上的增长趋势，而随着探针与羽流距离的增加，SGEMF呈现出下降的趋势。SGEMF的评估值从50到380 V / m和89到165 G不等。SGEMF的生长已基于膨胀等离子体的前，后前沿电荷的四极分布进行了解释。通过控制等离子体参数，例如电子温度和电子密度，可以将激光产生的等离子体有效地用作唤醒场加速器中脉冲电场和磁场的来源。