In this work, we focus on stub resonators embedded in plasmonic slotwaveguides. The resonators have potential applications in optical interconnectsand sensors. We fabricate the samples by electron beam lithography andlift-off. We use a scattering matrix based model to quantify the optical poweroutput from the samples. We measure the properties of the resonators bycoupling light in and out of the slot waveguides by optical antennas, makinguse of a cross-polarization based setup utilizing a supercontinuum source and ahigh numerical aperture objective lens operating in the telecom-wavelengthrange. Our model agrees well with the measured data. Further development on thestub resonators can be made by using the methods in this paper.
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