Abstract

The temporal and spatial evolution of the depleted neutral atom density following laser-enhanced ionization in laminar flow flames has been used to characterize the flow velocity of the flame gases. This technique utilizes a low power cw dye laser and a low sodium seed density (10¹¹ to 10¹² atoms/ml). The flow velocity can be measured to better than 2% in standard analytical burners.

Laser-enhanced flame ionization detector

Terrill A. Cool and John E. M. Goldsmith
Appl. Opt. 26(17) 3542-3551 (1987)

Use of laser-induced ionization to detect soot inception in premixed flames

Samuel L. Manzello, Eui Ju Lee, and George W. Mulholland
Appl. Opt. 44(24) 5105-5111 (2005)

Detection of trace amounts of Cr by two laser-based spectroscopic techniques: laser-enhanced ionization in flames and laser-induced fluorescence in graphite furnace

Ove Axner and Halina Rubinsztein-Dunlop
Appl. Opt. 32(6) 867-884 (1993)

Experiments concerning resonance-enhanced multiphoton ionization probe measurements of flame-species profiles

Asa Fein, Jeffrey S. Bernstein, Xiao-Mei Song, and Terrill A. Cool
Appl. Opt. 33(21) 4889-4898 (1994)

Detection of traces in semiconductor materials by two-color laser-enhanced ionization spectroscopy in flames

Ove Axner, Mats Lejon, Ingemar Magnusson, Halina Rubinsztein-Dunlop, and Sten Sjöström
Appl. Opt. 26(17) 3521-3525 (1987)