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首页> 美国政府科技报告 >Multiphoton and Multicolor Confocal Microscopy of Microstructure, Fracture Delamination and Thermal Degradation in Multilayer Organic Coatings and Paints
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Multiphoton and Multicolor Confocal Microscopy of Microstructure, Fracture Delamination and Thermal Degradation in Multilayer Organic Coatings and Paints

机译：多层有机涂层和涂料中的微结构，断裂分层和热降解的多光子和多色共聚焦显微镜

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Two photon confocal microscopy is an emerging technique in the field of laser scanning microscopy which has an inherent capability for optical sectioning in 3D. We have used this two photon confocal scanning microscopy as a nondestructive tool to study onset of corrosion of meatallic substrates beneath the paint layer in-situ without removing or peeling off the paint layer. The result shows that the onset of corrosion can be studied by a combination of reflection and two-photon fluorescence modes of detection in confocal microscopy. We have used the newly developed localized spectrometer (multi- photon or confocal) to study the microenvironmental changes inside the polymeric paint coatings. We have also explored a new technique called 'Optical Coherence Tomography' (OCT) for imaging through the paint coatings. In the process, we have developed a Confocal enhanced OCT (CEOCT) for imaging through highly scattering media. CEOCT was found to have a better S/N ratio while imaging through highly scattering coatings compared to two photoniconfocal or normal OCT.

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