Journal
OPTICS EXPRESS
Volume 20, Issue 14, Pages 15440-15451Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.20.015440
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Funding
- Quantum Metamaterial Research Center
- CNRS-Ewha International Research Center
- WCU of the National Research Foundation of Korea [R31-2008-000-10029-0]
- Ministry of Education, Science, and Technology, Republic of Korea
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THz metamaterials are employed to examine changes in the meta-resonances when two anisotropic organic materials, liquid crystal and carbon nanotubes, are placed on top of metamaterials. In both anisotropic double split-ring resonators and isotropic four-fold symmetric split-ring resonators, anisotropic interactions between the electric field and organic materials are enhanced in the vicinity of meta-resonances. In liquid crystal, meta-resonance frequency shift is observed with the magneto-optical coupling giving rise to the largest anisotropic shift. In carbon nanotube, meta-resonance absorptions, parallel and perpendicular to nanotube direction, experience different amount of broadening of Lorentzian oscillator of meta-resonance. Investigation reported here opens the application of metamaterials as a sensor for anisotropic materials. (C) 2012 Optical Society of America
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