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The Dicke subradiance and superradiance resulting from the interaction between surface plasmons of nanospheres and an ensemble of quantum emitters have been investigated by using a Green's function approach. Based on such an investigation, we propose a scheme for a deterministic multi-qubit quantum phase gate. The case of single sphere has been compared with nanosphere cluster which possesses hot...
We theoretically investigate interacting dark resonances in a plasmonic meta-molecule comprising a bright nano-antenna coupled to cascaded dark elements. This structure enables efficient energy transfer and exhibits sub-natural spectral response analogous to the atomic counterpart.
We experimentally investigate the nonlinear propagation in thick optical negative index materials. The ratio of the forward to backward four wave mixing generation was shown to follow the prediction of the phase-matching relations.
We demonstrate structurally reconfigurable metamaterials with a marked tunability of both electric and magnetic responses at terahertz frequencies where artificial “atoms” reorient within unit cells in response to an external stimulus.
3D stand-up metamaterial with purely magnetic resonance at THz frequencies was demonstrated and characterized. The successful design, fabrication and characterization of 3D metamaterials provides a new pathway for implementing novel electromagnetic properties at terahertz frequencies.
Flexible resonant terahertz metamaterials built on ultrathin highly flexible polyimide substrates have been designed, fabricated and measured. Our results provide a path forward for creating multi-layer non-planar metamaterials at terahertz frequencies.
We present the design, fabrication and characterization of a highly flexible metamaterial absorber that experimentally obtains an absorptivity of 0.96 at 1.6 THz and operates over wide angular range for transverse electric and transverse magnetic radiation.
In this paper, we present a metamaterial with simultaneously negative electric and magnetic resonance responses in the terahertz (THz) frequency range. The structure is composed of in-plane split resonator rings (SRRs) for desired electric response and out-of-plane SRRs realized by bimaterial pop up structures for magnetic response. Experimental results conducted using THz Time Domain Spectroscopy...
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