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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 27, Iss. 8 — Aug. 1, 2010
  • pp: 1863–1867

Imaging of vibrating objects using speckle subtraction

Thomas R. Moore, Ashley E. Cannaday, and Sarah A. Zietlow  »View Author Affiliations


JOSA A, Vol. 27, Issue 8, pp. 1863-1867 (2010)
http://dx.doi.org/10.1364/JOSAA.27.001863


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Abstract

A simple method for imaging vibrational motion is proposed. The process consists of capturing two speckled images of a region illuminated by coherent radiation. One of the images is captured before the onset of motion and the other during motion. If the mean speckle intensity is below the threshold for detection or above the saturation intensity of the detector, subtracting the two images produces a high contrast image of the moving region. A theory is shown to agree well with experimental data.

© 2010 Optical Society of America

OCIS Codes
(110.6150) Imaging systems : Speckle imaging
(120.6150) Instrumentation, measurement, and metrology : Speckle imaging
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: April 20, 2010
Revised Manuscript: June 16, 2010
Manuscript Accepted: July 1, 2010
Published: July 28, 2010

Citation
Thomas R. Moore, Ashley E. Cannaday, and Sarah A. Zietlow, "Imaging of vibrating objects using speckle subtraction," J. Opt. Soc. Am. A 27, 1863-1867 (2010)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-27-8-1863


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References

  1. N.-E. Molin, “Optical methods for acoustics and vibration measurements,” in Handbook of Acoustics, T.Rossing, ed. (Springer, 2007), pp. 1101–1123. [CrossRef]
  2. D. D. Duncan and S. J. Kirkpatrick, “Can laser speckle flowmetry be made a quantitative tool?” J. Opt. Soc. Am. A 25, 2088–2094 (2008). [CrossRef]
  3. A. R. Fercher, “Velocity measurement by first order statistics of time-differentiated laser speckles,” Opt. Commun. 33, 129–135 (1980). [CrossRef]
  4. G. Parry, “Speckle patterns in partially coherent light,” inLaser Speckle and Related Phenomena, J.C.Dainty, ed. (Springer, 1984), pp. 77–122.

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