Room-temperature high-Q channel-waveguide surface plasmon nanocavity

Ju Hyung Kang, Hong Kyu Park, Soon Hong Kwon

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

A low-loss plasmonic cavity is proposed comprising of channel waveguides of different widths. Numerical simulations show that surface plasmons are strongly confined by a mode-gap mechanism in the cavity that has a mode volume of 0.0040 (λ/n)3 and a room temperature quality (Q) factor of 125. The introduction of low-index material can enhance the room temperature Q factor by 2.5 times to 350, while maintaining the mode confinement of 0.040 (λ/n) 3- well below the wavelength-scale in free space. The suppression of losses from radiation and metallic absorption in the cavity would allow room temperature plasmonic laser operation, and constitutes significant progress towards practical coherent light sources for such lasers.

Original languageEnglish
Pages (from-to)13892-13898
Number of pages7
JournalOptics Express
Volume19
Issue number15
DOIs
Publication statusPublished - 2011 Jul 18

Fingerprint

Q factors
waveguides
cavities
room temperature
radiation absorption
coherent light
plasmons
lasers
light sources
retarding
wavelengths
simulation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Room-temperature high-Q channel-waveguide surface plasmon nanocavity. / Kang, Ju Hyung; Park, Hong Kyu; Kwon, Soon Hong.

In: Optics Express, Vol. 19, No. 15, 18.07.2011, p. 13892-13898.

Research output: Contribution to journalArticle

Kang, Ju Hyung ; Park, Hong Kyu ; Kwon, Soon Hong. / Room-temperature high-Q channel-waveguide surface plasmon nanocavity. In: Optics Express. 2011 ; Vol. 19, No. 15. pp. 13892-13898.
@article{ad6d363f167d49b69a9892150ab86a64,
title = "Room-temperature high-Q channel-waveguide surface plasmon nanocavity",
abstract = "A low-loss plasmonic cavity is proposed comprising of channel waveguides of different widths. Numerical simulations show that surface plasmons are strongly confined by a mode-gap mechanism in the cavity that has a mode volume of 0.0040 (λ/n)3 and a room temperature quality (Q) factor of 125. The introduction of low-index material can enhance the room temperature Q factor by 2.5 times to 350, while maintaining the mode confinement of 0.040 (λ/n) 3- well below the wavelength-scale in free space. The suppression of losses from radiation and metallic absorption in the cavity would allow room temperature plasmonic laser operation, and constitutes significant progress towards practical coherent light sources for such lasers.",
author = "Kang, {Ju Hyung} and Park, {Hong Kyu} and Kwon, {Soon Hong}",
year = "2011",
month = "7",
day = "18",
doi = "10.1364/OE.19.013892",
language = "English",
volume = "19",
pages = "13892--13898",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "15",

}

TY - JOUR

T1 - Room-temperature high-Q channel-waveguide surface plasmon nanocavity

AU - Kang, Ju Hyung

AU - Park, Hong Kyu

AU - Kwon, Soon Hong

PY - 2011/7/18

Y1 - 2011/7/18

N2 - A low-loss plasmonic cavity is proposed comprising of channel waveguides of different widths. Numerical simulations show that surface plasmons are strongly confined by a mode-gap mechanism in the cavity that has a mode volume of 0.0040 (λ/n)3 and a room temperature quality (Q) factor of 125. The introduction of low-index material can enhance the room temperature Q factor by 2.5 times to 350, while maintaining the mode confinement of 0.040 (λ/n) 3- well below the wavelength-scale in free space. The suppression of losses from radiation and metallic absorption in the cavity would allow room temperature plasmonic laser operation, and constitutes significant progress towards practical coherent light sources for such lasers.

AB - A low-loss plasmonic cavity is proposed comprising of channel waveguides of different widths. Numerical simulations show that surface plasmons are strongly confined by a mode-gap mechanism in the cavity that has a mode volume of 0.0040 (λ/n)3 and a room temperature quality (Q) factor of 125. The introduction of low-index material can enhance the room temperature Q factor by 2.5 times to 350, while maintaining the mode confinement of 0.040 (λ/n) 3- well below the wavelength-scale in free space. The suppression of losses from radiation and metallic absorption in the cavity would allow room temperature plasmonic laser operation, and constitutes significant progress towards practical coherent light sources for such lasers.

UR - http://www.scopus.com/inward/record.url?scp=79960534043&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79960534043&partnerID=8YFLogxK

U2 - 10.1364/OE.19.013892

DO - 10.1364/OE.19.013892

M3 - Article

VL - 19

SP - 13892

EP - 13898

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 15

ER -