Abstract
Laser-induced fluorescence (LIF) was applied at the B–X transition of the CH radical to measure the absolute densities of CH radicals in an electron-cyclotron resonance methane plasma. The absolute experimental uncertainty is only approximately 30% as a result of a new calibration procedure. The experimental setup was calibrated through the comparison of the LIF signal of N2 + with that of CH. The absolute N2 + density was derived from the spatially resolved N2 + LIF signal and the line-averaged electron density as measured with microwave interferometry.
© 1995 Optical Society of America
Full Article | PDF ArticleMore Like This
J. Luque, W. Juchmann, and J. B. Jeffries
Appl. Opt. 36(15) 3261-3270 (1997)
Sameer V. Naik and Normand M. Laurendeau
Appl. Opt. 43(26) 5116-5125 (2004)
Karen J. Rensberger, Jay B. Jeffries, Richard A. Copeland, Katharina Kohse-Höinghaus, Michael L. Wise, and David R. Crosley
Appl. Opt. 28(17) 3556-3566 (1989)