FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Tunable Effect of Double-Connective Dendritic Left-Handed Metamaterials Based on Electrorheological Fluids |
GUO Ji-Quan, LUO Chun-Rong, ZHAO Xiao-Peng |
Department of Applied Physics, Northwestern Polytechnical University, Xi' an 710072 |
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Cite this article: |
GUO Ji-Quan, LUO Chun-Rong, ZHAO Xiao-Peng 2009 Chin. Phys. Lett. 26 044102 |
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Abstract We present double-connective dendritic unit pairs which exhibit the left-handed property for electromagnetic wave normal incidence. Based on the tunable characteristics of electrorheological fluids (ERF) as the electric field, we experimentally study the influence of the distance of electrodes, the number of stacked layers, and the intensity of the external electric field upon the ERF to the left-handed transmission peak of the double-connective dendritic structure. The results show that the transmission could be enhanced with the increase of distance or the number of layers. Furthermore, by changing the intensity of the electric fields, the left-handed transmission peak can be modulated actively, and the maximum shift is up to 160MHz.
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Keywords:
41.20.Jb
78.20.Ci
47.65.Gx
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Received: 12 December 2008
Published: 25 March 2009
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PACS: |
41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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47.65.Gx
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(Electrorheological fluids)
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