Light transmission through a high index dielectric-filled sub-wavelength hole in a metal film

Juuso Olkkonen, Kari Kataja, Dennis Howe

Research output: Contribution to journalArticleScientificpeer-review

22 Citations (Scopus)

Abstract

We investigate transmission of a normally incident, linearly polarized plane wave through a circular sub-wavelength hole in a metal film filled by a high index dielectric medium. We demonstrate for the first time that the transmission efficiency of such holes exhibits a Fabry-Pérot-like behaviour versus thickness of the metal film, similar to that exhibited by sub-wavelength slits in metal films illuminated by TM-polarized plane waves. We show that by reducing the imaginary part of the propagation constant of the hybrid HE11 mode and by fortifying the Fabry-Pérot resonance, the high index dielectric filling can greatly enhance light transmission through a circular sub-wavelength hole.
Original languageEnglish
Pages (from-to)6980 - 6989
Number of pages10
JournalOptics Express
Volume13
Issue number18
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

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light transmission
metal films
plane waves
wavelengths
transmission efficiency
slits
propagation

Cite this

Olkkonen, Juuso ; Kataja, Kari ; Howe, Dennis. / Light transmission through a high index dielectric-filled sub-wavelength hole in a metal film. In: Optics Express. 2005 ; Vol. 13, No. 18. pp. 6980 - 6989.
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abstract = "We investigate transmission of a normally incident, linearly polarized plane wave through a circular sub-wavelength hole in a metal film filled by a high index dielectric medium. We demonstrate for the first time that the transmission efficiency of such holes exhibits a Fabry-P{\'e}rot-like behaviour versus thickness of the metal film, similar to that exhibited by sub-wavelength slits in metal films illuminated by TM-polarized plane waves. We show that by reducing the imaginary part of the propagation constant of the hybrid HE11 mode and by fortifying the Fabry-P{\'e}rot resonance, the high index dielectric filling can greatly enhance light transmission through a circular sub-wavelength hole.",
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Light transmission through a high index dielectric-filled sub-wavelength hole in a metal film. / Olkkonen, Juuso; Kataja, Kari; Howe, Dennis.

In: Optics Express, Vol. 13, No. 18, 2005, p. 6980 - 6989.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Howe, Dennis

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N2 - We investigate transmission of a normally incident, linearly polarized plane wave through a circular sub-wavelength hole in a metal film filled by a high index dielectric medium. We demonstrate for the first time that the transmission efficiency of such holes exhibits a Fabry-Pérot-like behaviour versus thickness of the metal film, similar to that exhibited by sub-wavelength slits in metal films illuminated by TM-polarized plane waves. We show that by reducing the imaginary part of the propagation constant of the hybrid HE11 mode and by fortifying the Fabry-Pérot resonance, the high index dielectric filling can greatly enhance light transmission through a circular sub-wavelength hole.

AB - We investigate transmission of a normally incident, linearly polarized plane wave through a circular sub-wavelength hole in a metal film filled by a high index dielectric medium. We demonstrate for the first time that the transmission efficiency of such holes exhibits a Fabry-Pérot-like behaviour versus thickness of the metal film, similar to that exhibited by sub-wavelength slits in metal films illuminated by TM-polarized plane waves. We show that by reducing the imaginary part of the propagation constant of the hybrid HE11 mode and by fortifying the Fabry-Pérot resonance, the high index dielectric filling can greatly enhance light transmission through a circular sub-wavelength hole.

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JO - Optics Express

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