A.C. Tam, J.L. Brand, et al.
Applied Physics Letters
Frequency modulation (FM) spectroscopy is demonstrated to be an attractive tool for gain analysis. It offers the three major features: a) potential high sensitivity in absolute gain measurement, b) high spectral resolution allowing the determination of the spectral gain profile, c) high temporal resolution capable of monitoring gain in short-pulsed systems. As an example, results of a gain analysis of the 6328 å line in a He-Ne discharge are presented. © 1982.
A.C. Tam, J.L. Brand, et al.
Applied Physics Letters
M. Romagnoli, W.E. Moerner, et al.
Journal of the Optical Society of America B: Optical Physics
W. Zapka, Winfrid Ziemlich, et al.
Applied Physics Letters
W. Zapka, P. Pokrowsky, et al.
Optics Letters