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Hybrid of surface plasmon polaritons and waveguide resonances through double-layer metallic gratings |
JOSA B, Vol. 28, Issue 3, pp. 587-591 (2011)
http://dx.doi.org/10.1364/JOSAB.28.000587
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Abstract
The optical properties of double-layer close-packed metallic gratings have been systematically studied. Apart from the optical transmission enhancement, we report the double-mode oscillation as the metal layer thickness increases beyond a critical value, which is related to the hybrid between two types of surface plasmon polariton and different orders of waveguide resonance inside the air cavity. To further improve our understanding of the physical mechanism involved, a field-interference mechanism of dipole array, induced by both lateral and vertical plasmon coupling, has been employed.
© 2011 Optical Society of America
OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(220.4000) Optical design and fabrication : Microstructure fabrication
(240.6680) Optics at surfaces : Surface plasmons
(310.6860) Thin films : Thin films, optical properties
(310.4165) Thin films : Multilayer design
(310.6628) Thin films : Subwavelength structures, nanostructures
ToC Category:
Diffraction and Gratings
History
Original Manuscript: November 22, 2010
Revised Manuscript: December 30, 2010
Manuscript Accepted: January 1, 2011
Published: February 28, 2011
Citation
Lin Zhou, Qian-jin Wang, Shan Wu, Wan-xia Huang, Cheng-ping Huang, and Yong-yuan Zhu, "Hybrid of surface plasmon polaritons and waveguide resonances through double-layer metallic gratings," J. Opt. Soc. Am. B 28, 587-591 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-3-587
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