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Toroidal multipoles are the subject of growing interest because of their unusual electromagnetic properties different from the electric and magnetic multipoles. In this paper, we present two new related classes of plasmonic metamaterial composed of purposely arranged of four U-shaped split ring resonators (SRRs) that show profound resonant toroidal(More)
Artificial photosynthesis using semiconductors has been investigated for more than three decades for the purpose of transferring solar energy into chemical fuels. Numerous studies have revealed that the introduction of plasmonic materials into photochemical reaction can substantially enhance the photo response to the solar splitting of water. Until(More)
Applications of surface plasmon polaritons [ 1 ] (SPP) have been extensively developed in the fi eld of optoelectronics, such as plasmonic circuitry (e.g., waveguides, interferometric logic, and modulators), [ 2 ] nanolasers, [ 3 ] ultrahigh-effi ciency sensors, [ 4 ] photovoltaics, [ 5 ] super-resolution imaging, [ 6 ] and various two-dimensional plasmonic(More)
We propose an innovative active imaging device named gain-assisted hybrid-superlens hyperlens and examine its resolving power theoretically. This semi-cylindrical device consists of a core of semi-cylindrical super-lens and a half cylindrical outer shell of hyperlens. Both the superlens and hyperlens parts of the device are appropriately designed(More)
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