annular resonator

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• Split Ring Resonator — A split ring resonator (SRR) is a component part of a negative refractive index material. SRRs are a pair of concentric annular rings with splits in them at opposite ends. The rings are made of nonmagnetic metal like copper and have small gap… …   Wikipedia

• split-ring resonator — noun A metamaterial component composed of pair of concentric annular rings with splits in them at opposite ends. The rings are made of nonmagnetic metal like copper and have a small gap between them …   Wiktionary

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• Marchywka Effect — From the patent application[1], bipolar surface treatment is almost identical to a normal electrochemical apparatus except for lack of contact between target and electrodes. An EMF source (18) impresses a field in the medium via electrodes (14)… …   Wikipedia