Title
Long-wave infrared surface plasmon grating coupler
Abbreviated Journal Title
Appl. Optics
Keywords
DOPED SILICON; ANOMALIES; LIGHT; SILICIDES; Optics
Abstract
We present a simplified analytic formula that may be used to design gratings intended to couple long-wave infrared radiation to surface plasmons. It is based on the theory of Hessel and Oliner (1965). The recipe is semiempirical, in that it requires knowledge of a surface-impedance modulation amplitude, which is found here as a function of the grating groove depth and the wavelength for silver lamellar gratings at CO2 laser wavelengths. The optimum groove depth for photon-to-surface-plasmon energy conversion was found by experiment and calculation to be similar to 10%-15% of the wavelength. This value is about twice what has been reported previously in the visible spectral range for sinusoidal grating profiles. (c) 2010 Optical Society of America
Journal Title
Applied Optics
Volume
49
Issue/Number
16
Publication Date
1-1-2010
Document Type
Article
Language
English
First Page
3102
Last Page
3110
WOS Identifier
ISSN
1559-128X
Recommended Citation
"Long-wave infrared surface plasmon grating coupler" (2010). Faculty Bibliography 2010s. 49.
https://stars.library.ucf.edu/facultybib2010/49
Comments
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