Enhanced nonresonant light transmission through subwavelength slits in metal

Anders Lambertus Pors, Khackatur V. Nerkararyan, Khachik Sahakyan, Sergey I. Bozhevolnyi

Publikation: Bidrag til tidsskriftLetterForskningpeer review

Resumé

We analytically describe light transmission through a single subwavelength slit in a thin perfect electric conductor screen for the incident polarization being perpendicular to the slit, and derive simple, yet accurate, expressions for the average electric field in the slit and the transmission efficiency. The analytic results are consistent with full-wave numerical calculations and demonstrate that slits of widths ∼100  nm in real metals may feature nonresonant (i.e., broadband) field enhancements of ∼100 and transmission efficiency of ∼10 at infrared or terahertz frequencies, with the associated metasurface-like array of slits becoming transparent to the incident light.
OriginalsprogEngelsk
TidsskriftOptics Letters
Vol/bind41
Udgave nummer2
Sider (fra-til)242-245
ISSN0146-9592
DOI
StatusUdgivet - 2016

Fingeraftryk

light transmission
slits
transmission efficiency
metals
electric conductors
broadband
electric fields
augmentation
polarization

Citer dette

Pors, Anders Lambertus ; Nerkararyan, Khackatur V. ; Sahakyan, Khachik ; Bozhevolnyi, Sergey I. / Enhanced nonresonant light transmission through subwavelength slits in metal. I: Optics Letters. 2016 ; Bind 41, Nr. 2. s. 242-245.
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abstract = "We analytically describe light transmission through a single subwavelength slit in a thin perfect electric conductor screen for the incident polarization being perpendicular to the slit, and derive simple, yet accurate, expressions for the average electric field in the slit and the transmission efficiency. The analytic results are consistent with full-wave numerical calculations and demonstrate that slits of widths ∼100  nm in real metals may feature nonresonant (i.e., broadband) field enhancements of ∼100 and transmission efficiency of ∼10 at infrared or terahertz frequencies, with the associated metasurface-like array of slits becoming transparent to the incident light.",
author = "Pors, {Anders Lambertus} and Nerkararyan, {Khackatur V.} and Khachik Sahakyan and Bozhevolnyi, {Sergey I.}",
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Enhanced nonresonant light transmission through subwavelength slits in metal. / Pors, Anders Lambertus; Nerkararyan, Khackatur V.; Sahakyan, Khachik; Bozhevolnyi, Sergey I.

I: Optics Letters, Bind 41, Nr. 2, 2016, s. 242-245.

Publikation: Bidrag til tidsskriftLetterForskningpeer review

TY - JOUR

T1 - Enhanced nonresonant light transmission through subwavelength slits in metal

AU - Pors, Anders Lambertus

AU - Nerkararyan, Khackatur V.

AU - Sahakyan, Khachik

AU - Bozhevolnyi, Sergey I.

PY - 2016

Y1 - 2016

N2 - We analytically describe light transmission through a single subwavelength slit in a thin perfect electric conductor screen for the incident polarization being perpendicular to the slit, and derive simple, yet accurate, expressions for the average electric field in the slit and the transmission efficiency. The analytic results are consistent with full-wave numerical calculations and demonstrate that slits of widths ∼100  nm in real metals may feature nonresonant (i.e., broadband) field enhancements of ∼100 and transmission efficiency of ∼10 at infrared or terahertz frequencies, with the associated metasurface-like array of slits becoming transparent to the incident light.

AB - We analytically describe light transmission through a single subwavelength slit in a thin perfect electric conductor screen for the incident polarization being perpendicular to the slit, and derive simple, yet accurate, expressions for the average electric field in the slit and the transmission efficiency. The analytic results are consistent with full-wave numerical calculations and demonstrate that slits of widths ∼100  nm in real metals may feature nonresonant (i.e., broadband) field enhancements of ∼100 and transmission efficiency of ∼10 at infrared or terahertz frequencies, with the associated metasurface-like array of slits becoming transparent to the incident light.

U2 - 10.1364/OL.41.000242

DO - 10.1364/OL.41.000242

M3 - Letter

VL - 41

SP - 242

EP - 245

JO - Optics Letters

JF - Optics Letters

SN - 0146-9592

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