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Metamaterial dielectric resonators represent a promising path toward low-loss metamaterials at optical frequencies. In this paper we utilize perturbations of high symmetry resonator geometries, such as cubes, either to overlap the electric and magnetic dipole resonances, thereby enabling directional scattering and Huygens' metasurfaces, or to induce couplings between the otherwise orthogonal resonator...
We use epsilon-near-zero modes in semiconductor nanolayers to design a system whose spectral properties are controlled by their interaction with multi-dipole resonances. This design flexibility renders our platform attractive for efficient nonlinear composite materials.
Strongly coupling metallic nanoresonators with specially designed intersubband-transitions in quantum-wells results in efficient, saturation-limited second-harmonic (SH) generation. This method also grants full control over the polarization and phase-front of the emitted SH radiation.
The vibrational mechanical properties of a graphene resonator were investigated by finite element analysis (FEA) modeling and simulation. By applying a pressure difference across the membrane, the natural frequency of the graphene sheets is changed. The resonance frequency increases with increasing pressure difference. The maximum deflection occurs at the center of graphene. As the initial tension...
The vibrational mechanical properties of a graphene resonator were investigated by finite element analysis (FEA) modeling and simulation. By applying a pressure difference across the membrane, the natural frequency of the graphene sheets is changed. The resonance frequency increases with increasing pressure difference. The maximum deflection occurs at the center of graphene. As the initial tension...
The vibrational mechanical properties of a graphene resonator were investigated by finite element analysis (FEA) modeling and simulation. By applying a pressure difference across the membrane, the natural frequency of the graphene sheets is changed. The resonance frequency increases with increasing pressure difference. The maximum deflection occurs at the center of graphene. As the initial tension...
The vibrational mechanical properties of a graphene resonator were investigated by finite element analysis (FEA) modeling and simulation. By applying a pressure difference across the membrane, the natural frequency of the graphene sheets is changed. The resonance frequency increases with increasing pressure difference. The maximum deflection occurs at the center of graphene. As the initial tension...
We directly demonstrate a dielectric optical magnetic mirror using phase-locked mid-infrared time-domain spectroscopy. This magnetic mirror is formed by micron-sized cubes of tellurium fabricated on a dielectric substrate.
Tellurium dielectric resonator metamaterials were fabricated using a newly developed multi-cycle deposition-etch process. Deposition and etching of Tellurium were studied in detail. All the samples showed two transmission minima corresponding to magnetic and electric dipole resonances.
We use phase-locked time-domain spectroscopy in the mid-infrared to directly demonstrate the “infrared magnetic mirror” behavior of an all-dielectric metamaterial. This metamaterial surface consists of micron-sized cubes of tellurium fabricated on a dielectric substrate.
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