激光诱导Al等离子体连续辐射研究

分析了Ａｌ等离子体连续辐射特征。根据连续辐射强度的同时分布，简要讨论了激光诱导等离子了体连续辐射的产生机理。我们认为激光诱导等离子体的连续辐射的主要机制提轫致辐射和复合辐射。在激光脉冲作用到靶上的瞬间，轫致辐射占主导地位，在等离子体演化初期，复合辐射和轫致辐射共同产生等离子体连续辐射，在等离子体演化后期，连续辐射主要是轫致辐射产生的。

Mechanism of the Continuum Radiation in the Plasma Induced by Laser Ablating Al

The continuum radiation of Aluminum plasma was studied based on the records.According to the distribution of time resolved relative intensity of continuum emission of the plasma induced by laser ablating Al in Ar,we have briefly discussed the mechanism of the continuum radiation of the plasma induced by laser ablating Aluminum.Bremsstrahlung and compound radiation of electron were considered as main mechanism of continuum emission.Short after the laser beam getting to the surface of the target;Bremsstrahlung is the primary mechanism of the continuum;during early stage of the plasma involution the continuum emission derives from Bremsstrahlung and compound radiation of electron;but during late stage the continuum emission only come from Bremsstrahlung of electron.