Measurements of Stark widths and shifts of Ne I lines using degenerate four-wave mixing and Thomson scattering methods

We report on measurements of Stark widths and shifts of four prominent Ne I lines of the 3s,3s'-3p transition arrays. The measurements were performed in an atmospheric-pressure arc discharge operated in argon-neon gas mixture. Sub-Doppler degenerate four-wave mixing technique was used to measure the line profiles, while Thomson scattering yielded the plasma parameters: electron density, ne = (0.53-1.33) x 1023 m-3, and electron temperature, T e = 10,200-20,900 K. The measured profiles are symmetric within the uncertainty limits. The experimental Stark widths and shifts are compared with results of other experiments and theoretical calculations