A closer look at dynamic speckles and the use of their fine-structure for object measurements

Research output: Contribution to journalConference articleResearchpeer-review

204 Downloads (Pure)

Abstract

The possibility to “dress up” the speckles and thereby providing them with a fine structure will be discussed. As these speckles arise from scattering off solid targets, the dynamics of the speckles and their inherent fine structure might vary, providing information on different aspects of the surface displacement. This is achieved by illuminating the object with structured light, and observing the speckle field as it passes an optical system. In this way, simultaneous measurement of displacement (e.g. 2-D) and rotation can be performed. The application of this concept with a system based on spatial filtering velocimetry and ordinary speckle correlation will be discussed.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Volume7387
Pages (from-to)73870W
ISSN0277-786X
DOIs
Publication statusPublished - 2010
EventSpeckle 2010: Optical Metrology - Florianapolis, Brazil
Duration: 13 Sep 201015 Sep 2010

Conference

ConferenceSpeckle 2010: Optical Metrology
CountryBrazil
CityFlorianapolis
Period13/09/201015/09/2010
OtherSPIE volume 7387

Keywords

  • Speckled speckles
  • Velocity measurement
  • Speckle dynamics

Fingerprint Dive into the research topics of 'A closer look at dynamic speckles and the use of their fine-structure for object measurements'. Together they form a unique fingerprint.

Cite this