title: [Study on plasma temperature in dielectric barrier discharge at the middle value of pd].
abstract: The optical emission spectra of Ar/air dielectric barrier discharge (DBD) scanned from 300-800 nm near atmospheric pressure were obtained. Electron excitation temperature (T(exc)) and molecule vibrational temperature (T(v)) in Ar/air DBD at the middle value of pressure-distance (pd) product (about 6.4 x 10(3) Pa x cm) were studied. The ArI 763.51 nm(2P6 --> 1S5) and 772.42 nm(2P2 --> 1S3) lines were chosen to estimate T(exc). T(v) was measured by the N2 second positive band (C 3IIu --> B 3IIg). It was found that T(exc) and T(v) increase with increasing applied voltage. And the varying rate of T(exc) with increasing voltage is bigger than that of T(v).
authors.affiliation: College of Physics Science and Technology, Hebei University, Baoding 071002, China. donglf@mail.hbu.edu.cn
authors.forename: Li-Fang
authors.initials: LF
authors.lastname: Dong
authors.forename: Yu-Yan
authors.initials: YY
authors.lastname: Qi
authors.forename: Rui-Ling
authors.initials: RL
authors.lastname: Gao
authors.forename: Feng
authors.initials: F
authors.lastname: Liu
authors.forename: Xue-Chen
authors.initials: XC
authors.lastname: Li