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Optics Letters

Optics Letters


  • Vol. 14, Iss. 10 — May. 15, 1989
  • pp: 473–475

Velocity measurement by H2O photolysis and laser-induced fluorescence of OH

Laurence R. Boedeker  »View Author Affiliations

Optics Letters, Vol. 14, Issue 10, pp. 473-475 (1989)

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Experimental results in a uniform, supersonic, free-jet flow containing water vapor show that enhancement of OH concentration by focused UV photodissociation of for velocity H2O at 248 nm is an excellent tagging mechanism measurements. Two-dimensional images of OH fluorescence with a vidicon show a narrow initial enhanced OH zone along a straight line limited by the jet diameter. Fluorescence induced by a time-delayed pulsed dye laser documents the convection of this enhanced OH by the uniform core flow and reveals sharply stretched edge regions due to the shear layer with ambient air. The core flow velocity measurements are in agreement with predicted values.

© 1989 Optical Society of America

Original Manuscript: July 21, 1988
Manuscript Accepted: February 6, 1989
Published: May 15, 1989

Laurence R. Boedeker, "Velocity measurement by H2O photolysis and laser-induced fluorescence of OH," Opt. Lett. 14, 473-475 (1989)

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