Theoretical Criteria for Scattering Dark States in Nanostructured Particles
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Author(s)
Hsu, Chia Wei
DeLacy, Brendan G.
Soljacic, Marin
Johnson, Steven G
Joannopoulos, John
Date Issued
May 2014
Journal
Nano Letters
Publisher
American Chemical Society (ACS)
Citation
Hsu, Chia Wei, Brendan G. DeLacy, Steven G. Johnson, John D. Joannopoulos, and Marin Soljacic. “Theoretical Criteria for Scattering Dark States in Nanostructured Particles.” Nano Lett. 14, no. 5 (May 14, 2014): 2783–2788.
Version
Original manuscript
Abstract
Nanostructures with multiple resonances can exhibit a suppressed or even completely eliminated scattering of light, called a scattering dark state. We describe this phenomenon with a general treatment of light scattering from a multiresonant nanostructure that is spherical or nonspherical but subwavelength in size. With multiple resonances in the same channel (i.e., same angular momentum and polarization), coherent interference always leads to scattering dark states in the low-absorption limit, regardless of the system details. The coupling between resonances is inevitable and can be interpreted as arising from far-field or near-field. This is a realization of coupled-resonator-induced transparency in the context of light scattering, which is related to but different from Fano resonances. Explicit examples are given to illustrate these concepts.
MIT Department
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Mathematics
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1021/nl500340n
