5 May 2015 Circular dichroism from Fano resonances in planar chiral oligomers
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Here we present a general approach for describing the physics of Fano resonances in nanoparticle oligomers. It is shown that the interference of nonorthogonal collective eigenmodes is a sufficient condition to produce Fano resonances. We then show that such nonorthogonality between eigenmodes also permits the existence of a new form circular dichroism in the absorption and scattering cross-sections, even when circular dichroism is forbidden in the extinction cross-section.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ben Hopkins, Ben Hopkins, Alexander N. Poddubny, Alexander N. Poddubny, Andrey E. Miroshnichenko, Andrey E. Miroshnichenko, Yuri S. Kivshar, Yuri S. Kivshar, } "Circular dichroism from Fano resonances in planar chiral oligomers", Proc. SPIE 9502, Metamaterials X, 95020Q (5 May 2015); doi: 10.1117/12.2183280; https://doi.org/10.1117/12.2183280


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