摘要
本文通过实验观测CuBr激光等离子体中铜的自发辐射光谱,建立了五能级CuBr脉冲激光动力学模型。应用电子温度和电子密度实验值,通过计算机数值计算得到的激光脉冲波形、峰值时刻、功率等都与实验值基本相符。结果还表明:当输入功率密度不变时,通过改变缓冲气体热扩散步长,可明显改变气体温度或初始铜原子密度,从而改变激光功率。
A kinetics model including five levels is presented according to the emission spectrum of Cu atom observed from a CuBr laser plasma. The numerically calculated laser power, peak time and weveform, by employing the experimental data of electron temperature and density, well conform to our measurement. At fixed input power, it is also shown that to change the difusion coefficient of the buffer gas will change the average temperature of the gas or the initial density of Cu atom, therefore, change the laser power as well.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1992年第10期1605-1612,共8页
Acta Physica Sinica