Laser Speckle Photography System

This laser speckle photography system can be used to measure the surface displacement field of an object from its double-exposed speckle graph. Other related parameters that can be measured using the speckle effect include strain, stress field, distance, velocity, internal defect, and internal vibration analysis.

LEOI-26A can be used to conduct the following experiments:

1. Take free-space and imaging speckle patterns to understand laser speckle phenomenon and characteristics

2. Point-to-point analysis of the surface displacement of an object from its double-exposed speckle graph

3. Global analysis of the surface displacement of an object from its double-exposed speckle graph