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The present work reports on the thermo-optical study of germanate thin films doped with Au and Ag nanoparticles. Transmission Electron Microscopy images, UV–visible absorption and Micro-Raman scattering evidenced the presence of nanoparticles and the formation of collective excitations, the so called surface plasmons. Moreover, the effects of the metallic nanoparticles in the thermal properties of...
The photothermal method for determinate absorption of the optical thin-film coatings is developed. The absorptance was determinate by the value of thermal lens in the air that is near the surface of the researcher sample. The thermal lens appears as a result of the absorption of the part high-power laser emission with known spatio-temporal distribution of energy. The value of thermal lens is measured...
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