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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 22, Iss. 13 — Jul. 1, 1997
  • pp: 1027–1029

Double-exposure heterodyne imaging for observing line-of-sight deformation

David G. Voelz, Lenore McMackin, James K. Boger, and Matthew P. Fetrow  »View Author Affiliations


Optics Letters, Vol. 22, Issue 13, pp. 1027-1029 (1997)
http://dx.doi.org/10.1364/OL.22.001027


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Abstract

An optical heterodyne array imaging system is described for double-exposure interferometric measurement of objects that change because of stress or vibration. The signal measurement and processing approach is summarized, and the method is demonstrated in the laboratory. An advantage of this technique over other electronic interferometric imaging methods is that complex exposures are created with digital phase and amplitude values at each image pixel. In addition, measurement of object deformation does not require time synchronization between the camera exposure time, or laser pulse time, and object vibration frequency.

© 1997 Optical Society of America

Citation
David G. Voelz, Lenore McMackin, James K. Boger, and Matthew P. Fetrow, "Double-exposure heterodyne imaging for observing line-of-sight deformation," Opt. Lett. 22, 1027-1029 (1997)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-22-13-1027

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