Influence of Adsorbed Metal Atoms on Light Absorption by a Fused Silica Surface
| Autor: | N. B. Leonov |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Laser ablation Absorption spectroscopy Analytical chemistry Physics::Optics chemistry.chemical_element respiratory system 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Metal Condensed Matter::Materials Science Adsorption chemistry visual_art 0103 physical sciences visual_art.visual_art_medium Surface plasmon resonance Absorption (electromagnetic radiation) Indium Plasmon |
| Zdroj: | Optics and Spectroscopy. 128:2046-2049 |
| ISSN: | 1562-6911 0030-400X |
| DOI: | 10.1134/s0030400x20120954 |
| Popis: | Optical properties of submonolayer metal (silver, gold, and indium) films obtained by laser ablation on a fused silica surface have been investigated. Extinction and absorption spectra of silica and substrates with deposited films and difference spectra are obtained. The minimum values of the effective metal-film thicknesses, at which islands begin to nucleate and localized plasmon resonances manifest themselves, are determined. It is shown that the absorption of the silica substrate–metal film complex exceeds the sum of absorptions by the silica surface and metal atoms. A relationship between this phenomenon and charge transfer from metal to defects on the substrate surface is revealed. |
| Databáze: | OpenAIRE |
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