Experimental investigations and parametric studies of surface roughness measurements using spectrally correlated speckle images

• Main Authors: Prabhathan, Patinharekandy, Song, Chaolong, Haridas, Aswin, Prasad, Guru, Chan, Kelvin H. K., Murukeshan, Vadakke Mataham
• Other Authors: Asundi, Anand K.
• Format: Article
• Language: English
• Published: 2019
• Subjects: Surface Roughness; Engineering::Mechanical engineering; Spectral Speckle Correlation
• Online Access: https://hdl.handle.net/10356/107502; http://hdl.handle.net/10220/49694
• Institution: Nanyang Technological University

The surface roughness parameters encoded in a speckle pattern can be effectively extracted through correlation experiments. In the case of spectrally correlated speckle images, the degree of decorrelation arises from wavelength difference in the laser light irradiated on the surface. To obtain accur...