Surface roughness measurement of aluminium thin film by laser speckle method

dc.contributor.author	Balamurugan, R.
dc.contributor.author	Rathina, K.
dc.contributor.author	Arul, A. R.
dc.contributor.author	Inbakumarand, S.
dc.contributor.author	Sethuraman, R. G.
dc.date.accessioned	2022-03-27T08:38:50Z
dc.date.available	2022-03-27T08:38:50Z
dc.date.issued	2020-11-02
dc.description.abstract	In this work, laser speckle imaging technique is used to measure the surface roughness of (Grade- 6062) Aluminium sample is presented. When an optically coarse surface of Al specimen irradiated by coherent laser light, cigar like dark and bright tiny spots of images are formed. This scattering self-interference pattern is called a speckle pattern. A high resolution CCD camera records the subjective speckle pattern. The surface roughness of Al sample is determined by fractal dimension and fractal box counting technique. The conventional stylus profilometer results are matched well with this laser speckle technique.
dc.identifier.citation	AIP Conference Proceedings. v.2270
dc.identifier.issn	0094243X
dc.identifier.uri	10.1063/5.0019448
dc.identifier.uri	http://aip.scitation.org/doi/abs/10.1063/5.0019448
dc.identifier.uri	https://dspace.uohyd.ac.in/handle/1/11350
dc.subject	Aluminium sample
dc.subject	Laser speckle
dc.subject	Stylus profilometer
dc.subject	Surface roughness
dc.title	Surface roughness measurement of aluminium thin film by laser speckle method
dc.type	Conference Proceeding. Conference Paper
dspace.entity.type

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