Imaging of vibrating objects using speckle subtraction
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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