Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Spatially resolved soot-absorption measurements in flames using laser vaporization of particles

Not Accessible

Your library or personal account may give you access

Abstract

Soot absorption in flames is measured with high spatial resolution using a new technique. In this method, the absorption of a probe laser is modulated by vaporization of the soot using a crossed, pulsed pump laser. A detailed analysis shows that the effective beam overlap or interaction length is insensitive to temperature, particle size, or pulsed-laser fluence (energy/area) above a threshold of 5 J/cm2. The technique has an absorption-coefficient shot-noise-detection limit of roughly 1 × 10−5 cm−1 with 0.1-cm spatial resolution using a single laser pulse. Spatially resolved measurements in premixed and in diffusion laminar flames are presented.

© 1984 Optical Society of America

Full Article  |  PDF Article
More Like This
Assessment of soot particle vaporization effects during laser-induced incandescence with time-resolved light scattering

Gregory D. Yoder, Prasoon K. Diwakar, and David W. Hahn
Appl. Opt. 44(20) 4211-4219 (2005)

Single-pulse, laser-saturated fluorescence measurements of OH in turbulent nonpremixed flames

Robert P. Lucht, Donald W. Sweeney, Normand M. Laurendeau, Michael C. Drake, Marshall Lapp, and Robert W. Pitz
Opt. Lett. 9(3) 90-92 (1984)

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

Equations (5)

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved