Observation of a transient wave motion from a single doubly-exposed hologram
Abstract
By making several double-exposed holograms of a propagating longitudinal stress wave in a long bar it is possible to study the directional characteristics of the wavefront. This paper shows how a similar effect can be produced by scanning a single doubly-exposed hologram, making use of the changing sensitivity vector, and so giving an apparent time-effect in the recorded 'frozen' displacement field.
- Publication:
-
Optics Laser Technology
- Pub Date:
- October 1977
- DOI:
- 10.1016/0030-3992(77)90099-8
- Bibcode:
- 1977OptLT...9..203K
- Keywords:
-
- Holographic Interferometry;
- Longitudinal Waves;
- Stress Propagation;
- Transient Response;
- Wave Front Reconstruction;
- Optical Scanners;
- Phase Shift;
- Photographic Recording;
- Sensitivity;
- Speckle Patterns;
- Stress Waves;
- Instrumentation and Photography