Spoof-surface-plasmon assisted light beaming in mid-infrared
JOSA B, Vol. 27, Issue 4, pp. 685-689 (2010)
http://dx.doi.org/10.1364/JOSAB.27.000685
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Abstract
We have investigated light beaming through a single slit in a silver thin film with periodic gratings on the output side in the mid-infrared wavelength range. We show that light beaming in mid-infrared is mainly controlled by spoof surface plasmons. We take account of both the dispersion relation and the phase-matching condition of spoof surface plasmons to obtain good beaming efficiency. Through engineering the geometrical parameters of the grating structures, we can achieve the desired near-field and far-field distribution in mid-infrared.
© 2010 Optical Society of America
OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.2770) Diffraction and gratings : Gratings
(050.6624) Diffraction and gratings : Subwavelength structures
ToC Category:
Optics at Surfaces
History
Original Manuscript: December 4, 2009
Revised Manuscript: January 12, 2010
Manuscript Accepted: January 26, 2010
Published: March 15, 2010
Citation
Pengyu Chen, Qiaoqiang Gan, Filbert J. Bartoli, and Lin Zhu, "Spoof-surface-plasmon assisted light beaming in mid-infrared," J. Opt. Soc. Am. B 27, 685-689 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-4-685
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