Abstract

We report a new variation on fluorescence detection, two-step saturated fluorescence spectroscopy, which can provide significant advantages over existing methods for detecting some atomic and molecular species. The method uses multiple-photon excitation of the selected atom or molecule, followed by saturated excitation of an optical transition from the initially excited state and subsequent detection of fluorescence emitted from the final state populated by the saturated excitation. The technique is demonstrated with the detection of atomic hydrogen in flames.

© 1985 Optical Society of America

Single-laser two-step fluorescence detection of atomic hydrogen in flames

J. E. M. Goldsmith and Normand M. Laurendeau
Opt. Lett. 15(10) 576-578 (1990)

Imaging of atomic hydrogen in flames with two-step saturated fluorescence detection

J. E. M. Goldsmith and R. J. M. Anderson
Appl. Opt. 24(5) 607-609 (1985)

Photochemical effects in 205-nm, two-photon-excited fluorescence detection of atomic hydrogen in flames

J. E. M. Goldsmith
Opt. Lett. 11(7) 416-418 (1986)

Time-resolved two-photon-excited fluorescence detection of atomic hydrogen in flames

J. E. M. Goldsmith, R. J. M. Anderson, and L. R. Williams
Opt. Lett. 15(1) 78-80 (1990)

Three-photon-excited fluorescence detection of atomic hydrogen in an atmospheric-pressure flame

M. Aldén, A. L. Schawlow, S. Svanberg, W. Wendt, and P.-L. Zhang
Opt. Lett. 9(6) 211-213 (1984)