Design of metallic nanocylinder array waveguide for controlling resonant wavelength shift

Autor:	Yuki Ando, Motohiro Endo, Di Wu, Takashi Yamaguchi, Seiya Kishimoto, Shinichiro Ohnuki
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	Numerical approximation and analysis Optical waveguides and couplers Structure of solid clusters nanoparticles nanotubes and nanostructured materials Collective excitations (surface states) Optical materials Optical waveguides Electrical engineering. Electronics. Nuclear engineering TK1-9971
Zdroj:	Electronics Letters, Vol 57, Iss 19, Pp 741-743 (2021)
Druh dokumentu:	article
ISSN:	1350-911X 0013-5194
DOI:	10.1049/ell2.12241
Popis:	Abstract A metallic nanocylinder array was previously proposed for the propagation of localized light generated in nanosized objects. However, the plasmon resonant wavelength for each cylinder shifts significantly with the propagation of light. In this study, a metallic nanoelliptic cylinder waveguide is investigated to control the plasmon resonant wavelength shift. The finite‐difference frequency‐domain (FDFD) electromagnetic solver is used to reduce the computational time. The relationship between the cross‐section of the cylinder and the plasmon resonance for the metal is described with the hydrodynamic Drude model. The effectiveness of the proposed waveguide in controlling the resonant wavelength shifts is confirmed by examining the plasmon propagation for 30 nanocylinders.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/c6612176df874e4ba6c45b0c1dd7a6f5 Zobrazit plný text záznamu Plný text View record in DOAJ