Speckle patterns are formed by random interferences of mutually coherent beams. While
speckles are often considered as unwanted noise in many areas, they also formed the …

This study focuses on the development of a complementary fatigue crack-tip evaluation
approach with multiscale optical techniques with different resolutions. A middle tension (MT) …

We propose to combine electronic speckle pattern interferometry with polarizing phase-
shifting techniques to measure in-plane displacement fields. We present the technical and …

New designs for gas cells are presented that incorporate transmissive or reflective optical
diffusers. These components offer simple alignment and can disrupt the formation of optical …

In-plane displacement measurement using Double exposure Speckle photography involves
illumination of a rough surface by coherent source of light and formation of image of the …

We report the effects of self-mixing interference on gas detection using tunable diode laser
spectroscopy. For very weak feedback, the laser diode output intensity gains a sinusoidal …

Digital Image Correlation (DIC) is a crucial noncontact full-field optical measurement method
used in various fields. However, in practical applications, DIC is affected by systematic and …

Speckle techniques are a class of whole-field methods that offer sensitivities ranging
between those obtainable by moiré methods and those of hologram interferometry …

Speckle velocimetry is investigated as a means of determining odometry data with potential
for application on autonomous robotic vehicles. The technique described here relies on the …

The use of finite element modelling, coupled to an increased interest in the mechanical
properties of inhomogeneous materials, such as composites, geological and biological …