Abstract

Rotational transfer cross sections for the OH A2+ (v = 0) rovibronic levels were determined for collisions with water vapor at flame temperatures. OH fluorescence was induced by a 10-ns pulse from a Nd:YAG pumped dye laser, and the resulting fluorescence spectrum was recorded at selected times during the laser pulse. The measurements were performed in the postflame region of 30-Torr stoichiometric hydrogen/oxygen/nitrogen flames. Four different upper rotational levels were excited. State-to-state and total rotational transfer rates were calculated by optimizing the agreement between experimental spectra and synthetic spectra generated by a time-dependent numerical code. For the F1(1), F1(4), F2(5), and F1(10) upper rotational levels in the A2+ (v = 0) manifold, total rotational transfer cross sections were found to be (110 ± 30), (170 ± 60), (190 ± 60), and (110 ± 30) × 10−16 cm2, respectively, for collisions of OH with water vapor.

© 1986 Optical Society of America

Full Article  |  PDF Article
More Like This
Picosecond laser-induced fluorescence measurement of rotational energy transfer of OH A2Σ+ (v′ = 2) in atmospheric pressure flames

Tim Nielsen, Frank Bormann, Michael Burrows, and Peter Andresen
Appl. Opt. 36(30) 7960-7969 (1997)

Picosecond investigation of the collisional deactivation of OH A2Σ+(v′ = 1, N′ = 4, 12) in an atmospheric-pressure flame

Paul Beaud, Peter P. Radi, Dieter Franzke, Hans-Martin Frey, Bernhard Mischler, Alexios-Paul Tzannis, and Thomas Gerber
Appl. Opt. 37(15) 3354-3367 (1998)

Vibrational energy transfer in laser-excited A2+ OH as a flame thermometer

David R. Crosley and Gregory P. Smith
Appl. Opt. 19(4) 517-520 (1980)

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 (10)

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 (4)

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 (14)

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