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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 25, Iss. 15 — Aug. 1, 2000
  • pp: 1068–1070

Measurement of complex surface deformation by high-speed dynamic phase-stepped digital speckle pattern interferometry

James M. Kilpatrick, Andrew J. Moore, James S. Barton, Julian D. C. Jones, Mark Reeves, and Clive Buckberry  »View Author Affiliations


Optics Letters, Vol. 25, Issue 15, pp. 1068-1070 (2000)
http://dx.doi.org/10.1364/OL.25.001068


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Abstract

We describe a high-speed digital speckle pattern interferometer incorporating a line-scan camera and a waveguide phase modulator for the measurement of complex deformation (vibration phase and amplitude) at audio acoustic frequencies. Experimental data show continuous phase-stepped recovery of out-of-plane surface deformation in one dimension, obtained at 100 kHz with 2π/20-rad (0.02-μm) displacement resolution, for surface velocities of 3.2 mm s>-1 .

© 2000 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis

Citation
James M. Kilpatrick, Andrew J. Moore, James S. Barton, Julian D. C. Jones, Mark Reeves, and Clive Buckberry, "Measurement of complex surface deformation by high-speed dynamic phase-stepped digital speckle pattern interferometry," Opt. Lett. 25, 1068-1070 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-15-1068

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