Four Styles of Spectral Line Shape Function and Their Transformation Relation
YIN Zeng-qian1, WU Chen1, WANG Yong-jie1，LI Xue-chen2
1. Department of Mathematics and Physics, North China University of Electric Power, Baoding 071003, China 2. College of Physics and Technology, Hebei University, Baoding 071002, China
Abstract：Four styles of spectral line shape function and their transformation relation were investigated theoretically. The photon number and energy distribution as functions of frequency and wavelength resulting from Doppler broadening were investigated, and the maximum intensity and FWHM(Full width at half maximum intensity) were obtained. The results show that the photon number distribution as function of frequency is almost the same as the energy distribution as function of frequency, while the photon number distribution as function of wavelength is almost the same as the energy distribution as function of wavelength. The method has been presented by analyzing the Doppler spectral line shape function, with which the ratio of density between two spectral lines can be obtained according to the ratio of maximum value of two spectral lines.
Key words：Spectral line shape function;Full width at half maximum intensity;Doppler broadening;Transformation
尹增谦1，武 臣1，王永杰1，李雪辰2 . 光谱线型函数的四种形式及其变换关系[J]. 光谱学与光谱分析, 2012, 32(05): 1189-1193.
YIN Zeng-qian1, WU Chen1, WANG Yong-jie1，LI Xue-chen2 . Four Styles of Spectral Line Shape Function and Their Transformation Relation. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(05): 1189-1193.
