Application of scanning sampling for studying coatings

Elena L. Surmenko; Valery V. Tuchin; Tatiana N. Sokolova; Alexander V. Konyushin; Yury V. Chebotarevsky

doi:10.1117/12.592324

27 April 2005 Application of scanning sampling for studying coatings

Elena L. Surmenko, Valery V. Tuchin, Tatiana N. Sokolova, Alexander V. Konyushin, Yury V. Chebotarevsky

Proceedings Volume 5707, Solid State Lasers XIV: Technology and Devices; (2005) https://doi.org/10.1117/12.592324
Event: Lasers and Applications in Science and Engineering, 2005, San Jose, California, United States

Abstract

LIBS is one of the best methods of multilayer coatings studying. Special laser technique-scanning sampling-was developed for studying of different kinds of objects (technical and biomedical coatings). The scanning sampling is based on the scanning of analyzed object during the exposition time. The velocity of scanning is defined by the diameter of laser crater and pulse repetition rate. It allows to increase the volume part of a coating substance in a sample. Some special applications of LIBS and scanning sampling with Q-switched Nd:YAG-laser in the field of technics and biomedicine are described. The layer-by-layer elemental analysis of multilayer components was performed for finding-out the probable non-uniformity. That could appear the reason of wrong work of components. Special layer characteristic calculated as a ratio of spectral lines intensities for elements contained in different layers of a coating was defined for estimation non-uniformity. LIBS in investigation of dental tissues allows to define preliminary the nature of pathology. Scanning sampling used for such tissues as debris and odontolith, allows to find out the stage of lesion and to predict carious conditions.

Citation Download Citation

Elena L. Surmenko, Valery V. Tuchin, Tatiana N. Sokolova, Alexander V. Konyushin, and Yury V. Chebotarevsky "Application of scanning sampling for studying coatings", Proc. SPIE 5707, Solid State Lasers XIV: Technology and Devices, (27 April 2005); https://doi.org/10.1117/12.592324

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