Observation of defect formation in metamaterials

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Author
Caglayan H.
Bulu I.
Loncar, M.
Ozbay, E.
Date
2008Journal Title
Optics InfoBase Conference Papers
ISSN
21622701
Publisher
Optical Society of America
Language
English
Type
Conference Paper
Metadata
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http://hdl.handle.net/11693/26907Abstract
We report subwavelength localization of electromagnetic fields within cavities based on metamaterials. Cavity resonances are observed in the transmission spectrum of a split ring resonator and composite metamaterials cavity structures. These cavity resonances are shown to exhibit high quality factors. Since the unit cells of metamaterials are much smaller than the operation wavelength, subwavelength localization is possible within these metamaterial cavity structures. In the present paper, we show that the electromagnetic field is localized into a region of λ/8, where λ is the cavity resonance wavelength.