Simple empirical analytical approximation to the Voigt profile Liu, Yuyan ; Lin, Jieli ; Huang, Guangming ; Guo, Yuanqing ; Duan, Chuanxi Abstract Publication: Journal of the Optical Society of America B Optical Physics Pub Date: May 2001 DOI: 10.1364/JOSAB.18.000666 Bibcode: 2001JOSAB..18..666L