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Chiral Surface Lattice Resonances

MPG-Autoren
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Nechayev,  Sergey
Interference Microscopy and Nanooptics, Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Institute of OpticsInformation and PhotonicsFriedrich-Alexander University Erlangen-Nürnberg;

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Banzer,  Peter
Interference Microscopy and Nanooptics, Leuchs Emeritus Group, Emeritus Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Institute of OpticsInformation and PhotonicsFriedrich-Alexander University Erlangen-Nürnberg;

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Zitation

Goerlitzer, E. S. A., Mohammadi, R., Nechayev, S., Volk, K., Rey, M., Banzer, P., et al. (2020). Chiral Surface Lattice Resonances. Advanced Materials, 2001330. doi:10.1002/adma.202001330.


Zitierlink: https://hdl.handle.net/21.11116/0000-0006-45E8-7
Zusammenfassung
Collective excitation of periodic arrays of metallic nanoparticles by coupling localized surface plasmon resonances to grazing diffraction orders leads to surface lattice resonances with narrow line width. These resonances may find numerous applications in optical sensing and information processing. Here, a new degree of freedom of surface lattice resonances is experimentally investigated by demonstrating handedness-dependent excitation of surface lattice resonances in arrays of chiral plasmonic crescents. The self-assembly of particles used as mask and modified colloidal lithography is applied to produce arrays of planar and 3D gold crescents over large areas. The excitation of surface lattice resonances as a function of the interparticle distance and the degree of order within the arrays is investigated. The chirality of the individual 3D crescents leads to the formation of chiral lattice modes, that is, surface lattice resonances that exhibit optical activity.