Abstract

Total removal rate constants from the NH(A3Πi) electronic state have been obtained in low pressure (~14-Torr) N2O flames. The fluorescence decay constants and quantum yields Φ depend on the temperature and composition at each position interrogated in the flame. In similar conditions, Φ for NH(A3Πu) is significantly greater than that for other radicals CH(A2Δ and B2Σ) and OH(A2Σ+). A small decrease (~5%) in the electronic removal is observed with rotational excitation increasing from N′ = 2 to 12 in the A state. Estimates of collisional quenching cross sections at flame temperatures are made for the important combustion species, H2O, C3H8, C2H4, and C2H2.

© 1989 Optical Society of America

Full Article  |  PDF Article
More Like This
Time-resolved CH (A2Δ and B2) laser-induced fluorescence in low pressure hydrocarbon flames

Karen J. Rensberger, Mark J. Dyer, and Richard A. Copeland
Appl. Opt. 27(17) 3679-3689 (1988)

Laser-induced fluorescence determination of temperatures in low pressure flames

Karen J. Rensberger, Jay B. Jeffries, Richard A. Copeland, Katharina Kohse-Höinghaus, Michael L. Wise, and David R. Crosley
Appl. Opt. 28(17) 3556-3566 (1989)

Saturated fluorescence measurements of the hydroxyl radical in laminar high-pressure C2H6/O2/N2 flames

Campbell D. Carter, Galen B. King, and Normand M. Laurendeau
Appl. Opt. 31(10) 1511-1522 (1992)

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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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

Tables (5)

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

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

Equations (3)

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

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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