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Chiral Surface Lattice Resonances
Author(s) -
Goerlitzer Eric S. A.,
Mohammadi Reza,
Nechayev Sergey,
Volk Kirsten,
Rey Marcel,
Banzer Peter,
Karg Matthias,
Vogel Nicolas
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202001330
Subject(s) - materials science , excitation , lattice (music) , planar , chirality (physics) , condensed matter physics , diffraction , molecular physics , surface plasmon , surface plasmon resonance , plasmon , optics , nanoparticle , optoelectronics , nanotechnology , chiral symmetry , physics , computer graphics (images) , quantum mechanics , computer science , acoustics , nambu–jona lasinio model , quark
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.