Plasmonic enhanced infrared detector element
First Claim
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1. An infrared detector element comprising:
- an infrared detector; and
a plasmonic antenna disposed within a near field of the infrared detector, wherein the plasmonic antenna comprises,a metal film,a sub-wavelength aperture in the metal film, anda plurality of circular corrugations centered around the sub-wavelength aperture.
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Abstract
Electromagnetic radiation detector elements and methods for detecting electromagnetic radiation, in particular, infrared radiation, are provided. The electromagnetic radiation detector element can include an electromagnetic radiation detector and a plasmonic antenna disposed over the electromagnetic radiation detector. The plasmonic antenna can include a metal film, a sub-wavelength aperture in the metal film, and a plurality of circular corrugations centered around the sub-wavelength aperture.
29 Citations
24 Claims
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1. An infrared detector element comprising:
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an infrared detector; and a plasmonic antenna disposed within a near field of the infrared detector, wherein the plasmonic antenna comprises, a metal film, a sub-wavelength aperture in the metal film, and a plurality of circular corrugations centered around the sub-wavelength aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of detecting electromagnetic radiation comprising:
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providing a plasmonic antenna within a near field of a detector; propagating surface plasma waves along a metal film portion of the plasmonic antenna; coupling an energy from incident electromagnetic radiation to the surface plasma waves using a plurality of corrugations on the metal film; and transmitting the energy through a sub-wavelength aperture in the metal film to the detector. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. An electromagnetic radiation detector element comprising:
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an electromagnetic radiation detector; and a plasmonic antenna disposed within a near field of the electromagnetic radiation detector, wherein the plasmonic antenna comprises, a metal film, a sub-wavelength aperture in the metal film, and a plurality of circular corrugations centered around the sub-wavelength aperture. - View Dependent Claims (22, 23, 24)
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Specification