论文部分内容阅读
利用不同加热机制产生的超热电子所导致的相干渡越辐射(CTR)在谐波分量强度比上的不同,给出了区分飞秒激光等离子体相互作用产生超热电子过程中的主要与次要加热机制的一种可能方法.得到了加热周期不同的加热机制所产生超热电子的比例与CTR谐波分量的二倍频和一倍频的强度比之间的具体关系式.如果在实验上测到此谐波分量强度比,就可以推出不同加热机制在加热过程中所起作用的大致比例关系.另外,CTR谐波分量的强度比还与超热电子的温度、实验上所使用靶的厚度有一定依赖关系,对此作了较为详细的讨论.
The difference of the intensity ratio of the harmonic components caused by the superconducting electrons generated by the different heating mechanisms is used to derive the main and the second order of the processes for distinguishing the superheat electrons from the femtosecond laser plasma interaction A possible method of heating mechanism is obtained The specific relationship between the ratio of the superheated electrons generated by the heating mechanism with different heating cycles and the ratio of the intensities of the second harmonic and the second harmonic of the harmonic component of the CTR is shown in the experiment Measured on this harmonic component intensity ratio, can be put forward the different heating mechanism in the heating process of roughly proportional relationship.In addition, the CTR harmonic component intensity ratio is also related with the temperature of the hot electron, the experimental target The thickness of a certain dependency, which made a more detailed discussion.