Multi-layered dielectric cladding plasmonic microdisk resonator filter and coupler

Bo Han Cheng, Yung-Chiang Lan

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This work develops the plasmonic microdisk filter/coupler, whose effectiveness is evaluated by finite-difference time-domain simulation and theoretical analyses. Multi-layer dielectric cladding is used to prevent the scattering of surface plasmons (SPs) from a silver microdisk. This method allows devices that efficiently perform filter/coupler functions to be developed. The resonant conditions and the effective refractive index of bounded SP modes on the microdisk are determined herein. The waveguide-to-microdisk distance barely influences the resonant wavelength but it is inversely related to the bandwidth. These findings are consistent with predictions made using the typical ring resonator model.

Original languageEnglish
Article number020701
JournalPhysics of Plasmas
Volume20
Issue number2
DOIs
Publication statusPublished - 2013 Feb 1

Fingerprint

plasmons
couplers
resonators
filters
silver
refractivity
waveguides
bandwidth
rings
predictions
scattering
wavelengths
simulation

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

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Multi-layered dielectric cladding plasmonic microdisk resonator filter and coupler. / Cheng, Bo Han; Lan, Yung-Chiang.

In: Physics of Plasmas, Vol. 20, No. 2, 020701, 01.02.2013.

Research output: Contribution to journalArticle

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