Spectral and spatial investigation of midinfrared surface waves on a plasmonic grating

T. Ribaudo; D. C. Adams; B. Passmore; E. A. Shaner; D. Wasserman

doi:10.1063/1.3140569

Spectral and spatial investigation of midinfrared surface waves on a plasmonic grating

T. Ribaudo, D. C. Adams, B. Passmore, E. A. Shaner, D. Wasserman

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

Abstract

A patterned metal film with a periodic array of subwavelength apertures, fabricated upon a semiconductor substrate and designed to possess transmission resonances in the midinfrared is interrogated with a wavelength-tunable external cavity quantum cascade laser. The interaction of the coherent light with this plasmonic structure is studied using a spatially resolved transmission experiment, allowing for the far-field imaging of propagating waves on the surface of the metal film. Spatial and spectral transmission is investigated for a range of near-normal incidence angles. For nonzero angles of incidence, coupling of laser light, at distinct frequencies, to surface waves propagating in opposite directions is demonstrated.

Original language	English (US)
Article number	201109
Journal	Applied Physics Letters
Volume	94
Issue number	20
DOIs	https://doi.org/10.1063/1.3140569
State	Published - 2009
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3140569

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title = "Spectral and spatial investigation of midinfrared surface waves on a plasmonic grating",

abstract = "A patterned metal film with a periodic array of subwavelength apertures, fabricated upon a semiconductor substrate and designed to possess transmission resonances in the midinfrared is interrogated with a wavelength-tunable external cavity quantum cascade laser. The interaction of the coherent light with this plasmonic structure is studied using a spatially resolved transmission experiment, allowing for the far-field imaging of propagating waves on the surface of the metal film. Spatial and spectral transmission is investigated for a range of near-normal incidence angles. For nonzero angles of incidence, coupling of laser light, at distinct frequencies, to surface waves propagating in opposite directions is demonstrated.",

author = "T. Ribaudo and Adams, {D. C.} and B. Passmore and Shaner, {E. A.} and D. Wasserman",

note = "Funding Information: The authors would like to thank C. Gmachl and the NSF-ERC Mid-Infrared Technology for Health and the Environment (MIRTHE), for use of the Daylight Solutions tunable laser. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Co., for the United States Department of Energy{\textquoteright}s National Nuclear Security Administration under Contract No. DE-AC04-94AL85000.",

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doi = "10.1063/1.3140569",

language = "English (US)",

volume = "94",

journal = "Applied Physics Letters",

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AU - Ribaudo, T.

AU - Adams, D. C.

AU - Passmore, B.

AU - Shaner, E. A.

AU - Wasserman, D.

N1 - Funding Information: The authors would like to thank C. Gmachl and the NSF-ERC Mid-Infrared Technology for Health and the Environment (MIRTHE), for use of the Daylight Solutions tunable laser. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Co., for the United States Department of Energy’s National Nuclear Security Administration under Contract No. DE-AC04-94AL85000.

PY - 2009

Y1 - 2009

N2 - A patterned metal film with a periodic array of subwavelength apertures, fabricated upon a semiconductor substrate and designed to possess transmission resonances in the midinfrared is interrogated with a wavelength-tunable external cavity quantum cascade laser. The interaction of the coherent light with this plasmonic structure is studied using a spatially resolved transmission experiment, allowing for the far-field imaging of propagating waves on the surface of the metal film. Spatial and spectral transmission is investigated for a range of near-normal incidence angles. For nonzero angles of incidence, coupling of laser light, at distinct frequencies, to surface waves propagating in opposite directions is demonstrated.

AB - A patterned metal film with a periodic array of subwavelength apertures, fabricated upon a semiconductor substrate and designed to possess transmission resonances in the midinfrared is interrogated with a wavelength-tunable external cavity quantum cascade laser. The interaction of the coherent light with this plasmonic structure is studied using a spatially resolved transmission experiment, allowing for the far-field imaging of propagating waves on the surface of the metal film. Spatial and spectral transmission is investigated for a range of near-normal incidence angles. For nonzero angles of incidence, coupling of laser light, at distinct frequencies, to surface waves propagating in opposite directions is demonstrated.

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Spectral and spatial investigation of midinfrared surface waves on a plasmonic grating

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