Voigt线型宽度的经验公式及其应用

Empirical Formula of Voigt Line Width and Its Application

根据Voigt线型函数的解析形式,利用数值计算方法建立了Voigt线型宽度与洛仑兹线型宽度和高斯线型宽度的经验公式。以该线型宽度经验公式为基础,建立了由实验获得的光谱线型宽度计算得到洛仑兹和高斯宽度的方案,以一组线型函数为例验证了我们计算方案的可靠性。根据本工作建立的方法,对Ar气等离子体射流的696.5nm谱线进行了计算,得到了与其对应的洛仑兹线型和高斯线型函数。

According to the analytical form of Voigt line shape function,the empirical formula of Voigt line shape width and Lorentz line shape width and Gaussian line shape width is established by numerical calculation method.Based on the empirical formula of line shape width,the calculation scheme of Lorentz and Gaussian width obtained by experimentally spectral line shape width is established.The reliability of our calculation scheme is verified by a set of line shape functions.According to the method established in this work,the 696.5 nm line of the Ar gas plasma jet is calculated,and the corresponding Lorentz line shape and Gaussian line shape function are obtained.