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In this contribution we study the fundamental interactions of a metamaterial system built of dipole elements in the THz regime. We investigate the coupling between the elements for different geometries, as well as symmetric and asymmetric structures and analyze the response of the system with changing refractive index of the surrounding medium. Finally, we use these structures to access intersubband...
We present modified circular patch resonators and discuss their potential for coupling to semiconductor heterostructures. We theoretically investigated these structures in combination with asymmetric QWs for second-harmonic generation (SHG) and parametric conversion (PC). The Q-factor of modes of the bare (empty) circular plasmonic resonator is proved to be at least 40 and a mode overlap factor of...
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