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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 35 — Dec. 10, 2008
  • pp: 6601–6605

Determination of probe volume dimensions in coherent measurement techniques

Sarah A. Tedder, Markus C. Weikl, Thomas Seeger, and Alfred Leipertz  »View Author Affiliations

Applied Optics, Vol. 47, Issue 35, pp. 6601-6605 (2008)

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When investigating combustion phenomena with pump–probe techniques, the spatial resolution is given by the overlapping region of the laser beams and thus defines the probe volume size. The size of this probe volume becomes important when the length scales of interest are on the same order or smaller. We present a new approach to measure the probe volume in three dimensions, which can be used to determine the probe volume length, diameter, and shape. The optical arrangement and data evaluation are demonstrated for a dual-pump dual-broadband coherent anti-Stokes Raman scattering setup that is used for combustion diagnostics. This new approach offers a simple, quick alternative with more capabilities than formerly used probe volume measurement methods.

© 2008 Optical Society of America

OCIS Codes
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(300.6230) Spectroscopy : Spectroscopy, coherent anti-Stokes Raman scattering

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: September 23, 2008
Manuscript Accepted: October 17, 2008
Published: December 5, 2008

Sarah A. Tedder, Markus C. Weikl, Thomas Seeger, and Alfred Leipertz, "Determination of probe volume dimensions in coherent measurement techniques," Appl. Opt. 47, 6601-6605 (2008)

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