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Extreme Concentration and Nanoscale Interaction of Light

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/persons/resource/persons201115

Leuchs,  Gerd
Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Friedrich-Alexander-Universität Erlangen-Nürnberg, External Organizations;

/persons/resource/persons201008

Banzer,  Peter
Interference Microscopy and Nanooptics, Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Friedrich-Alexander-Universität Erlangen-Nürnberg, External Organizations;

/persons/resource/persons201198

Sondermann,  Markus
4pi Photon Atom Coupling, Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Friedrich-Alexander-Universität Erlangen-Nürnberg, External Organizations;

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Citation

Leuchs, G., Andrianov V, A., Anashkina, E. A., Manshina, A. A., Banzer, P., & Sondermann, M. (2022). Extreme Concentration and Nanoscale Interaction of Light. ACS PHOTONICS, 9(6), 1842-1851. doi:10.1021/acsphotonics.2c00187.


Cite as: https://hdl.handle.net/21.11116/0000-000F-8CD9-F
Abstract
Concentrating light strongly calls for appropriate polarization patterns of the focused light beam and for up to a full 4 pi solid angle geometry. Focusing on the extreme requires efficient coupling to nanostructures of one kind or another via cylindrical vector beams having such patterns, the details of which depend on the geometry and property of the respective nanostructure. Cylindrical vector beams can not only be used to study a nanostructure, but also vice versa. Closely related is the discussion of topics such as the ultimate diffraction limit, a resonant field enhancement near nanoscopic absorbers, as well as speculations about nonresonant field enhancement, which, if it exists, might be relevant to pair production in vacuum. These cases do require further rigorous simulations and more decisive experiments. While there is a wide diversity of scenarios, there are also conceptually very different models offering helpful intuitive pictures despite this diversity.