Strong light concentration at the subwavelength scale by a metallic hole-array structure

John Chun Chieh Chang; Zu Po Yang; Danhong Huang; D. A. Cardimona; Shawn Yu Lin

doi:10.1364/OL.34.000106

Strong light concentration at the subwavelength scale by a metallic hole-array structure

John Chun Chieh Chang, Zu Po Yang, Danhong Huang, D. A. Cardimona, Shawn Yu Lin^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

A metallic two-dimensional hole-array (2DHA) sample is successfully fabricated and its transmission property measured at mid-infrared wavelengths (λ ∼ 1.5-20 μm). At the plasmonic resonance, the 2DHA sample exhibits a normal incidence transmittance of 80% at λ=7.6 μm. This corresponds to more than twice as much light that is transmitted as it impinges directly on the holes at the maxima of transmittance. This exceedingly large enhancement is attributed to a strong plasmonic resonance and an effective light concentration through an ultrathin metal film of 50 nm. This advancement will pave the way to a much enhanced infrared detection using a simple and compact 2DHA architecture.

Original language	English
Pages (from-to)	106-108
Number of pages	3
Journal	Optics Letters
Volume	34
Issue number	1
DOIs	https://doi.org/10.1364/OL.34.000106
Publication status	Published - 2009 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "A metallic two-dimensional hole-array (2DHA) sample is successfully fabricated and its transmission property measured at mid-infrared wavelengths (λ ∼ 1.5-20 μm). At the plasmonic resonance, the 2DHA sample exhibits a normal incidence transmittance of 80% at λ=7.6 μm. This corresponds to more than twice as much light that is transmitted as it impinges directly on the holes at the maxima of transmittance. This exceedingly large enhancement is attributed to a strong plasmonic resonance and an effective light concentration through an ultrathin metal film of 50 nm. This advancement will pave the way to a much enhanced infrared detection using a simple and compact 2DHA architecture.",

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AU - Chang, John Chun Chieh

AU - Yang, Zu Po

AU - Huang, Danhong

AU - Cardimona, D. A.

AU - Lin, Shawn Yu

PY - 2009/1/1

Y1 - 2009/1/1

N2 - A metallic two-dimensional hole-array (2DHA) sample is successfully fabricated and its transmission property measured at mid-infrared wavelengths (λ ∼ 1.5-20 μm). At the plasmonic resonance, the 2DHA sample exhibits a normal incidence transmittance of 80% at λ=7.6 μm. This corresponds to more than twice as much light that is transmitted as it impinges directly on the holes at the maxima of transmittance. This exceedingly large enhancement is attributed to a strong plasmonic resonance and an effective light concentration through an ultrathin metal film of 50 nm. This advancement will pave the way to a much enhanced infrared detection using a simple and compact 2DHA architecture.

AB - A metallic two-dimensional hole-array (2DHA) sample is successfully fabricated and its transmission property measured at mid-infrared wavelengths (λ ∼ 1.5-20 μm). At the plasmonic resonance, the 2DHA sample exhibits a normal incidence transmittance of 80% at λ=7.6 μm. This corresponds to more than twice as much light that is transmitted as it impinges directly on the holes at the maxima of transmittance. This exceedingly large enhancement is attributed to a strong plasmonic resonance and an effective light concentration through an ultrathin metal film of 50 nm. This advancement will pave the way to a much enhanced infrared detection using a simple and compact 2DHA architecture.

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Strong light concentration at the subwavelength scale by a metallic hole-array structure

Abstract

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