Influence of thermal treatment on second-harmonic generation in silver islands films |
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| Authors: | F R Aussenegg A Leitner J D Pedarnig |
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| Institution: | (1) Institut für Experimentalphysik, Karl-Franzens-Universität, A-8010 Graz, Austria |
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| Abstract: | A reduction in second-harmonic generation (SHG) efficiency at silver islands films is observed when such submicroscopic structures are tempered at approx. 410K. This behavior can be attributed to two facts: an increase in symmetry in film morphology and changes in the particles' electron plasma resonances causing field enhancements inside the particles. The observed correspondence between submicroscopic surface morphology and obtained second-harmonic signal suggests a SHG microscope for the maplike distinguishing between differently structured surface areas.Dedicated to Prof. Dr. Herbert Welling on the occasion of his 60th birthday |
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| Keywords: | 78 65-s 42 65Cq |
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