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Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 19, Iss. S2 — Mar. 14, 2011
  • pp: A80–A94

Enhancement of the optical transmission by mixing the metallic and dielectric nanoparticles atop the silicon substrate

Yung-Ming Yeh, Yu-Sheng Wang, and Jia-Han Li  »View Author Affiliations


Optics Express, Vol. 19, Issue S2, pp. A80-A94 (2011)
http://dx.doi.org/10.1364/OE.19.000A80


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Abstract

We propose a structure with the metallic and dielectric nanoparticles on the surface of the silicon material and study its optical transmission properties. The structure with the radiuses of the silver and silica nanoparticles as 50 nm and 100 nm, respectively, with the gap as 8 nm between silver and silica nanoparticles is found to have the largest optical transmission into the silicon material in our simulations. The largest field intensities are on the bottom of the silver nanoparticles and these can result strong field scattering into the silicon material. From the plotting of the average power densities around the gaps and the air regions between the silver and silica nanoparticles, the light power can go thorough these regions and flow downward to the silicon material. It is also found that the light energy rotates around the bottom of the silver nanoparticles due to the strong localized surface plasmons. The rectangular arrangement of the nanoparticle structures with mixing metallic and dielectric nanoparticles are studied, and the cases for the structures with only the metallic nanoparticles or only the dielectric nanoparticles are also simulated and compared. The rectangular or hexagonal structures with mixing metallic and dielectric nanoparticles on the surface of the silicon substrate can have better optical transmission than the cases of the rectangular arrangement with only metallic or dielectric nanoparticles.

© 2011 OSA

OCIS Codes
(040.5350) Detectors : Photovoltaic
(240.6680) Optics at surfaces : Surface plasmons
(310.1210) Thin films : Antireflection coatings
(350.6050) Other areas of optics : Solar energy
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Plasmonics

History
Original Manuscript: November 9, 2010
Revised Manuscript: December 21, 2010
Manuscript Accepted: December 27, 2010
Published: January 11, 2011

Citation
Yung-Ming Yeh, Yu-Sheng Wang, and Jia-Han Li, "Enhancement of the optical transmission by mixing the metallic and dielectric nanoparticles atop the silicon substrate," Opt. Express 19, A80-A94 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-S2-A80


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