Abstract

Atomic hydrogen has been studied in an atmospheric-pressure hydrogen–air flame by using resonant multiphoton optogalvanic spectroscopy. This technique offers excellent spatial and temporal resolution, with an estimated sensitivity at the 1-part-in-10⁶ level. This experiment represents the first reported direct, in situ optical detection of the extremely important hydrogen radical in a combustion environment.

© 1982 Optical Society of America

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)

Multiphoton photochemical and collisional effects during oxygen-atom flame detection

Andrzej W. Miziolek and Mark A. DeWilde
Opt. Lett. 9(9) 390-392 (1984)

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)

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)

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)