Abstract

A variety of laser-induced fluorescence schemes were examined experimentally in atmospheric pressure flames to determine their use for sodium atom and salt detection in high-pressure, optically thick environments. Collisional energy transfer plays a large role in fluorescence detection. Optimum sensitivity, at the parts in 109 level for a single laser pulse, was obtained with the excitation of the 4p–3s transition at 330 nm and the detection of the 3d–3p fluorescence at 818 nm. Fluorescence loss processes such as ionization and amplified spontaneous emission were examined. A new laser-induced atomization/laser-induced fluorescence detection technique was demonstrated for NaOH and NaCl. A 248-nm excimer laser photodissociates the salt molecules present in the seeded flames prior to atom detection by laser-induced fluorescence.

© 1993 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Detection of nitrogen atoms in flames using two-photon laser-induced fluorescence and investigations of photochemical effects

Ulf Westblom, Sara Agrup, Marcus Aldén, and Per Cederbalk
Appl. Opt. 30(21) 2990-3002 (1991)

Comparison of nanosecond and picosecond excitation for interference-free two-photon laser-induced fluorescence detection of atomic hydrogen in flames

Waruna D. Kulatilaka, Brian D. Patterson, Jonathan H. Frank, and Thomas B. Settersten
Appl. Opt. 47(26) 4672-4683 (2008)

Laser-induced fluorescence measurement of oxygen atoms above a catalytic combustor surface

Mark J. Dyer, Lisa D. Pfefferle, and David R. Crosley
Appl. Opt. 29(1) 111-118 (1990)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (3)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription