Absorption linewidth inversion with wavelength modulation spectroscopy

Yan Yue¹, Du Zhenhui^{1, †}, Li Jinyi², Wang Ruixue¹

(color online) The measured and simulated signals, modulation depth a = 0.084 cm⁻¹, the best fitted parameters , and Voigt linewidth was calculated to be 0.0766 cm⁻¹. The unit a.u. is short for arbitrary units.