Journal
OPTICS EXPRESS
Volume 20, Issue 21, Pages 24059-24067Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.20.024059
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Funding
- Japan Society for the Promotion of Science [21510134]
- Ministry of Education, Culture, Sports, Science and Technology of Japan [22109007]
- Grants-in-Aid for Scientific Research [21510134, 24651124, 22109007] Funding Source: KAKEN
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We fabricated silver split-ring resonators (SRRs) using nanosphere lithography and measured the LC resonance wavelength of single isolated SRRs in optical wavelength range. The SRRs' sizes decreased when smaller polystyrene spheres were used as templates, and their LC resonance wavelength decreased to 721 nm. The LC resonance wavelength corresponding to the observed properties of the SRRs was calculated using the LC circuit model; we confirmed that the observational and calculated results agreed well. The LC resonance frequency of a miniaturized SRR with a constant shape was also calculated. For SRRs of the shape that we fabricated, the estimated short-wavelength limit was 426 nm. (C) 2012 Optical Society of America
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