MIT Libraries logoDSpace@MIT

MIT
View Item 
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Forward and backward unidirectional scattering by the core-shell nanocube dimer with balanced gain and loss

Author(s)
Lv, Jingwei; Zhang, Xiaoming; Yu, Xuntao; Mu, Haiwei; Liu, Qiang; Liu, Chao; Sun, Tao; Chu, Paul K.; ... Show more Show less
Thumbnail
Downloadnanomaterials-10-01440.pdf (3.274Mb)
Publisher with Creative Commons License

Publisher with Creative Commons License

Creative Commons Attribution

Terms of use
Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/
Metadata
Show full item record
Abstract
An optical nanoantenna consisting of a Au-dielectric core-shell nanocube dimer with switchable directionality was designed and described. Our theoretical model and numerical simulation showed that switching between forward and backward directions can be achieved with balanced gain and loss, using a single element by changing the coefficient κ in the core, which can be defined by the relative phase of the polarizability. The optical response indicated a remarkable dependence on the coefficient κ in the core as well as frequency. The location of the electric field enhancement was specified by the different coefficient κ and, furthermore, the chained optical nanoantenna and coupled electric dipole emitted to the optical nanoantenna played significant roles in unidirectional scattering. This simple method to calculate the feasibility of unidirectional and switchable scattering provides an effective strategy to explore the functionalities of nanophotonic devices.
Date issued
2020-07-23
URI
https://hdl.handle.net/1721.1/127683
Department
Massachusetts Institute of Technology. Media Laboratory
Journal
Nanomaterials
Publisher
Multidisciplinary Digital Publishing Institute
Citation
Lu, Jingwei et al. "Forward and backward unidirectional scattering by the core-shell nanocube dimer with balanced gain and loss." Nanomaterials 10, 8 (July 2020): 1440 ©2020 Author(s)
Version: Final published version
ISSN
2079-4991

Collections
  • MIT Open Access Articles

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

OA StatisticsStatistics by CountryStatistics by Department
MIT Libraries
PrivacyPermissionsAccessibilityContact us
MIT
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.