Measurements of argon metastable density using the tunable diode laser absorption spectroscopy in Ar and Ar/O<sub>2</sub>

Measurements of argon metastable density using the tunable diode laser absorption spectroscopy in Ar and Ar/O₂

Han Dao-Man¹, Liu Yong-Xin^{1, 2, †}, Gao Fei¹, Liu Wen-Yao³, Xu Jun¹, Wang You-Nian¹

(color online) Measured absorption rate profile (black dash curve) and Gaussian fitting curve (red solid curve) calculated from four spectral lines shown in Fig. 2: both peak at 772.376 nm and 772.421 nm.