Abstract

An inductively coupled plasma is placed inside the cavity of a flashlamp-pumped dye laser and atomic absorption is measured with the use of an optogalvanic detector. An enhancement factor of 170 is shown for intracavity absorption relative to single-pass, extracavity absorption. Both atom and ion lines can be monitored by this technique. Detection limits of 1 μg/mL for sodium and 0.1 μg/mL for barium were observed. The major noise source is pulse-to-pulse fluctuation in the laser output.

Optogalvanic effect as a detector for intracavity atomic absorption in a cw dye laser

Edward F. Zalewski, Richard A. Keller, and Charles T. Apel
Appl. Opt. 20(9) 1584-1587 (1981)

Optogalvanic resonance detection of pulsed dye laser atomic absorption

Mark A. Nippoldt and Robert B. Green
Appl. Opt. 20(18) 3206-3210 (1981)

Quantitative detection of atomic absorption by intracavity dye-laser quenching

M. Maeda, F. Ishitsuka, M. Matsumoto, and Y. Miyazoe
Appl. Opt. 16(2) 403-406 (1977)

Propagation characteristics of terahertz wave in inductively coupled plasma

Jinhai Sun, Yan Zheng, Jielin Shi, Yarui Zhao, Yu Li, Ding Wu, He Cai, Xutao Zhang, Xianli Zhu, Yongqiang Liu, Xinxue Sun, Zengming Chao, Hongcheng Yin, Wenqi Lu, and Hongbin Ding
Opt. Express 29(22) 35837-35847 (2021)

Observation in a discharge of short-lived atomic states by intracavity absorption

G. O. Brink and S. M. Heider
Opt. Lett. 6(8) 366-368 (1981)