OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 9 — Mar. 20, 2012
  • pp: 1396–1406

Spatial filtering velocimetry of objective speckles for measuring out-of-plane motion

M. L. Jakobsen, H. T. Yura, and S. G. Hanson  »View Author Affiliations


Applied Optics, Vol. 51, Issue 9, pp. 1396-1406 (2012)
http://dx.doi.org/10.1364/AO.51.001396


View Full Text Article

Enhanced HTML    Acrobat PDF (1089 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

This paper analyzes the dynamics of objective laser speckles as the distance between the object and the observation plane continuously changes. With the purpose of applying optical spatial filtering velocimetry to the speckle dynamics, in order to measure out-of-plane motion in real time, a rotational symmetric spatial filter is designed. The spatial filter converts the speckle dynamics into a photocurrent with a quasi-sinusoidal response to the out-of-plane motion. The spatial filter is here emulated with a CCD camera, and is tested on speckles arising from a real application. The analysis discusses the selectivity of the spatial filter, the nonlinear response between speckle motion and observation distance, and the influence of the distance-dependent speckle size. Experiments with the emulated filters illustrate performance and potential applications of the technology.

© 2012 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(030.1670) Coherence and statistical optics : Coherent optical effects
(030.6140) Coherence and statistical optics : Speckle
(030.6600) Coherence and statistical optics : Statistical optics
(070.6110) Fourier optics and signal processing : Spatial filtering
(120.7250) Instrumentation, measurement, and metrology : Velocimetry

ToC Category:
Coherence and Statistical Optics

History
Original Manuscript: August 29, 2011
Revised Manuscript: November 10, 2011
Manuscript Accepted: November 10, 2011
Published: March 19, 2012

Citation
M. L. Jakobsen, H. T. Yura, and S. G. Hanson, "Spatial filtering velocimetry of objective speckles for measuring out-of-plane motion," Appl. Opt. 51, 1396-1406 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-9-1396

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited