@article{8063, author = {F. Brehmer and S. Welzel and B. L. M. Klarenaar and H. J. van der Meiden and M. C. M. van de Sanden and R. Engeln}, title = {Gas temperature in transient CO2 plasma measured by Raman scattering}, abstract = {Rotational Raman scattering on the vibrational ground state of CO 2 was performed to determine the gas temperature in narrow-gap dielectric barrier discharges (DBDs). The Raman spectrometer was equipped with a straightforward spectral filtering to mask ca. 30 cm −1 (0.85 nm) centered around the excitation wavelength of 532 nm. Linearisation of the observed transitions ( J = 18–42) was applied to retrieve gas temperatures in discharge gaps of 1 mm. The DBD was operated in pure CO 2 at atmospheric pressure and non-negligible gas heating of about 160 K was observed at 33 W injected power. Based on a simplified energy balance the gas temperature measurements were extrapolated to a broad range of injected plasma power values (0–60 W).}, year = {2015}, journal = {Journal of Physics D: Applied Physics}, volume = {48}, pages = {155201}, doi = {10.1088/0022-3727/48/15/155201}, language = {eng}, }