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Semináře

Úterý, 17.09.2019 10:00

John Bigeon (Université de Rennes 1, FRANCE)

The wide use of active media in nanophotonics requires the understanding and control of a multitude of light matter interactions at the nanoscale. In the first part, i will present how the formation of ultra-dense arrays of dyes with designed molecular orientation manifests unique feature in nanophotonics. For example, we have determined that the strong coupling regime, regime where the light-matter interaction gives rise to hybrid states depends on the molecular orientation of dyes. When this consideration is applied to nanostructures (distributed feedback laser or bowties), original effects...

Pátek, 20.09.2019 13:00

Václav Eigner (Oddělení strukturní analýzy)

Úterý, 24.09.2019 15:00

Prokop Hapala (Department of Condensed Matter Theory, FZÚ AV ČR, v.v.i. and Department of Applied Physics, Aalto University Espoo, Finland)

Abstract: In recent decade Atomic Force Microscopy with tip functionalized by carbon monoxide (CO) provided unique tool to experimentally image sub-molecular details of individual organic molecules [1]. In principle it allows to map distribution of electron density and electrostatic potential, which is of great importance e.g. for on-surface chemistry. Direct interpretation of the images is however complicated by convolution of electric fields and strong relaxation of CO molecule causing severe image distortions. This problem can be partially overcome by simple mechanical...