Abstract

A novel technique is demonstrated for the imaging of turbulent flows in which a single window to the flow is the only optical access required. A femtosecond laser is used to excite two-photon fluorescence in a disodium-fluorescein-seeded water jet. The fluorescence signal is generated at only the focal point of the laser because of the highly nonlinear nature of the two-photon absorption, and it is collected in a direction counterpropagating to the excitation beam. Tight focusing of the laser is used to limit the probe volume, and the two-dimensional mean and rms concentration images are collected by raster scanning the laser.

© 2004 Optical Society of America

Full Article  |  PDF Article
More Like This
10 kHz 2D thermometry in turbulent reacting flows using two-color OH planar laser-induced fluorescence

Paul S. Hsu, Naibo Jiang, Daniel Lauriola, Stephen W. Grib, Stephen A. Schumaker, Andrew W. Caswell, and Sukesh Roy
Appl. Opt. 60(15) C1-C7 (2021)

Temperature imaging with single- and dual-wavelength acetone planar laser-induced fluorescence

Mark C. Thurber, Frédéric Grisch, and Ronald K. Hanson
Opt. Lett. 22(4) 251-253 (1997)

Quantitative dual-tracer planar laser-induced fluorescence measurements of molecular mixing

Gregory F. King, Robert P. Lucht, and J. Craig Dutton
Opt. Lett. 22(9) 633-635 (1997)

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 (3)

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

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