AI Article Synopsis
- Speckles occur when light interacts with rough surfaces or turbulent media, resulting in a random pattern in reflected or transmitted light.
- Speckles can be problematic for creating clear images but are valuable for analyzing displacement, deformation, vibration, and stress.
- The paper discusses the evolution of speckle techniques from photography to more advanced methods like speckle interferometry and digital holographic interferometry.
Article Abstract
Speckles are inherently an interference phenomenon produced when an optically rough surface or a turbulent medium introduces some degree of randomness to a reflected or a transmitted electromagnetic field. Speckles are often nuisance in coherent image formation. Speckle patterns are however a useful tool for displacement and deformation as well as vibration and stress analysis. The development of speckle photography to speckle interferometry and digital holographic interferometry is described in this paper.
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| http://dx.doi.org/10.1364/AO.52.000030 | DOI Listing |
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