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We propose and experimentally demonstrate a reconfigurable photonic RF differentiator based on a Kerr frequency comb generated in an integrated nonlinear microring resonator. The RF magnitude and phase responses are experimentally characterized. Systems demonstrations for Gaussian input signals are also performed.
Dielectric resonators have been foreseen as a pathway for the realization of highly efficient nanoantennas and metamaterials at optical frequencies. In this paper, we study the resonant behavior of dielectric nanocylinders located on a metal plane, which in combination create dielectric resonator antennas operating in reflection mode. By implementing appropriate resonator models, the field distributions,...
Conventional metallic nanoantennas suffer significant energy dissipation introduced by Drude metals in the optical frequency range. To overcome this limitation, optical dielectric resonator antenna (DRA) was proposed and demonstrated through a realization of optical DRA reflectarray with the capability of beam shaping. The reflectarray is composed of nanometer-scale cylindrical resonators operating...
The lateral leakage loss mechanism of the TM-like mode in thin-ridge SOI ring resonators is significantly impacted by the ring radius and waveguide width. This behavior is analyzed using rigorous modeling techniques and verified experimentally.
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