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Modeling and experimental verification of optical materials formed by stacked nanostrips |
Optics Express, Vol. 18, Issue 14, pp. 14842-14849 (2010)
http://dx.doi.org/10.1364/OE.18.014842
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Abstract
The effective plasma frequency fp of periodic metallic wires whose characteristic dimensions are comparable to their skin depth has been analyzed. And a relevant analytic model is constructed by considering the skin effect and making a reasonable shape approximation, which is suitable for the case that the cross section of the wire is noncircular. To verify this model, a wires array with rectangle cross section is designed and the corresponding stacked Au-SiO2 nanostrips are fabricated. The experimental and simulational transmittances of the metamaterial have been evaluated with a good agreement, although the presence of quartz substrate and structural imperfections in experiment will have an impact, which validates that the multilayer Au-SiO2 nanostrips could function similarly to a natural bulk metal with discrepancies of fp values less than 8%. It could be confirmed that the theoretic formula is trustworthy in predicting fp for designing and realizing a controllable artificial metal in optical region.
© 2010 OSA
OCIS Codes
(160.4670) Materials : Optical materials
(160.4760) Materials : Optical properties
(260.5740) Physical optics : Resonance
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
ToC Category:
Metamaterials
History
Original Manuscript: April 27, 2010
Revised Manuscript: June 5, 2010
Manuscript Accepted: June 16, 2010
Published: June 28, 2010
Citation
Xingzhan Wei, Haofei Shi, Guoxing Zheng, Xiaochun Dong, and Chunlei Du, "Modeling and experimental verification of optical materials formed by stacked nanostrips," Opt. Express 18, 14842-14849 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-14-14842
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