Various mechanisms for efficient optical transmission through bilayered subwavelength patterned metal films
JOSA B, Vol. 26, Issue 12, pp. B7-B10 doi:10.1364/JOSAB.26.0000B7
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- OCIS Codes:
- (050.1220) Diffraction and gratings : Apertures
- (240.6680) Optics at surfaces : Surface plasmons
- (260.3910) Physical optics : Metal optics
Citation
Jian Wang, Yong Zeng, Xiaoshuang Chen, Wei Lu, and Jerome V. Moloney, "Various mechanisms for efficient optical transmission through bilayered subwavelength patterned metal films," J. Opt. Soc. Am. B 26, B7-B10 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-12-B7
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Light transmission through bilayered thin metal films perforated with subwavelength hole arrays are numerically studied based on a full-vector finite-difference time-domain approach. A variety of transmission peaks originating from different physical mechanisms are observed. In addition to the direct tunneling and Fabry-Pèrot resonances, generally possessed by idealized bilayered dielectric slabs, the near-field localized plasmon polaritons also play important roles. They not only influence the direct tunneling in a destructive or constructive way, but the interactions between these localized plasmon polaritons on both metal films also result in additional channels that transfer optical energy effectively.
© 2009 Optical Society of America
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History
Original Manuscript: February 18, 2009
Manuscript Accepted: May 12, 2009
Revised Manuscript: April 25, 2009
Published: June 19, 2009
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Author Affiliations
Arizona Center for Mathematical Sciences, University of Arizona, Tucson, Arizona 85721, USA
National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Science, 200083 Shanghai, China
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