Loss mechanisms in mid-infrared extraordinary optical transmission gratings

T. Ribaudo; B. Passmore; K. Freitas; E. A. Shaner; J. G. Cederberg; D. Wasserman

doi:10.1364/OE.17.000666

Loss mechanisms in mid-infrared extraordinary optical transmission gratings

T. Ribaudo, B. Passmore, K. Freitas, E. A. Shaner, J. G. Cederberg, D. Wasserman

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

Abstract

The optical properties of periodic arrays of subwavelength apertures in metal films on GaAs substrates are studied. Specifically, geometric and material losses for these plasmonic structures are characterized using angular dependent transmission, normal incidence reflection, and angular dependent diffraction experiments, in addition to a crossed-polarizer transmission experiment. The optical properties of the samples as a function of engineered material losses are studied. Using this comprehensive approach to the characterization of the plasmonic structures, we are able to identify and isolate specific loss mechanisms, as well as identify the effect of free carriers on the optical properties of the structures.

Original language	English (US)
Pages (from-to)	666-675
Number of pages	10
Journal	Optics Express
Volume	17
Issue number	2
DOIs	https://doi.org/10.1364/OE.17.000666
State	Published - Jan 19 2009
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OE.17.000666

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AU - Cederberg, J. G.

AU - Wasserman, D.

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AB - The optical properties of periodic arrays of subwavelength apertures in metal films on GaAs substrates are studied. Specifically, geometric and material losses for these plasmonic structures are characterized using angular dependent transmission, normal incidence reflection, and angular dependent diffraction experiments, in addition to a crossed-polarizer transmission experiment. The optical properties of the samples as a function of engineered material losses are studied. Using this comprehensive approach to the characterization of the plasmonic structures, we are able to identify and isolate specific loss mechanisms, as well as identify the effect of free carriers on the optical properties of the structures.

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Loss mechanisms in mid-infrared extraordinary optical transmission gratings

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