Full three-dimensional subwavelength high-Q surface-plasmon-polariton cavity

Min K. Seo, Soon Hong Kwon, Ho Seok Ee, Hong Kyu Park

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

We propose a full three-dimensional subwavelength surface-plasmon-polariton cavity based on a metal-coated dielectric nanowire with an axial heterostructure. Surface plasmon-polaritons are strongly confined at the nanowire-metal interface sandwiched by an effective plasmonic mirror that consists of lower-index nanowire core and metal shell. Numerical simulations show for a cavity <50 × 50 x 40 nm3 (mode volume, V ∼ 10 5 μm3) that a quality factor, Q, >36000 is achieved at 20 K. This ultrasmall plasmonic cavity can be used as a plasmonic emitter or laser device coupled to a plasmonic waveguide with a high coupling efficiency in deep-subwavelength photonic systems.

Original languageEnglish
Pages (from-to)4078-4082
Number of pages5
JournalNano Letters
Volume9
Issue number12
DOIs
Publication statusPublished - 2009 Dec 9

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polaritons
Nanowires
Q factors
nanowires
Metals
cavities
metal shells
metals
Photonics
Heterojunctions
emitters
Mirrors
Waveguides
photonics
mirrors
waveguides
Lasers
Computer simulation
lasers
simulation

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Mechanical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Full three-dimensional subwavelength high-Q surface-plasmon-polariton cavity. / Seo, Min K.; Kwon, Soon Hong; Ee, Ho Seok; Park, Hong Kyu.

In: Nano Letters, Vol. 9, No. 12, 09.12.2009, p. 4078-4082.

Research output: Contribution to journalArticle

Seo, Min K. ; Kwon, Soon Hong ; Ee, Ho Seok ; Park, Hong Kyu. / Full three-dimensional subwavelength high-Q surface-plasmon-polariton cavity. In: Nano Letters. 2009 ; Vol. 9, No. 12. pp. 4078-4082.
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