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.
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Dedicated to Prof. Dr. Herbert Welling on the occasion of his 60th birthday
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Aussenegg, F.R., Leitner, A. & Pedarnig, J.D. Influence of thermal treatment on second-harmonic generation in silver islands films. Appl. Phys. B 49, 279–281 (1989). https://doi.org/10.1007/BF00714648
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DOI: https://doi.org/10.1007/BF00714648