Abstract

Double-resonance fluorescence refers to a process in which atoms (or molecules) are excited into the fluorescence state in a stepwise manner with two lasers tuned at appropriate atomic (or molecular) energy levels. The analytical advantage of such excitation processes as compared to that involving only one step (single-resonance fluorecence) lies in its increased spectral selectivity without a significant loss of sensitivity if both excited state transitions are saturated. Several analytical studies performed with tunable lasers in atmospheric-pressure atomizers have been reported in the literature.

Steady-state atomic fluorescence radiance expressions for continuum excitation

G. D. Boutilier, M. B. Blackburn, J. M. Mermet, S. J. Weeks, H. Haraguchi, J. D. Winefordner, and N. Omenetto
Appl. Opt. 17(15) 2291-2298 (1978)

Measurement of photoionization cross section in atomic uranium using simultaneous observation of laser-induced photoionization and fluorescence signals

Mukesh Lal Shah, Gomati Prasad Gupta, Vas Dev, Bishwaranjan Dikshit, Manmohan Singh Bhatia, and Brij Mohan Suri
J. Opt. Soc. Am. B 29(4) 600-606 (2012)

Laser-induced fluorescence detection strategies for sodium atoms and compounds in high-pressure combustors

Karen J. Rensberger Weiland, Michael L. Wise, and Gregory P. Smith
Appl. Opt. 32(21) 4066-4073 (1993)

Two-step saturated fluorescence detection of atomic hydrogen in flames

J. E. M. Goldsmith
Opt. Lett. 10(3) 116-118 (1985)

Light Sources for the Excitation of Atomic Resonance Fluorescence in Potassium and Rubidium*

R. J. Atkinson, G. D. Chapman, and L. Krause
J. Opt. Soc. Am. 55(10) 1269-1274 (1965)