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The coupled resonator optical waveguides (CROW) and side-coupled integrated spaced sequence of resonators (SCISSOR) are of interest due to their unique optical characteristics and various potential applications. In this work coupled disc silica micro resonators of different layouts are investigated. Depending on coupling strength the intensity tends to concentrate in one micro resonator, which can...
In this talk, we present our recent results on investigations of microresonators at the University Jena. The work is divided into two parts. In the first part we focus on fabrication and characterization of different nonlinear effects in single silica and hybrid silica-silicon disc microresonators. In the second part we discuss spectral characteristics and light distribution in coupled micro disc...
In this paper a bistable operation of silica micro disc resonators and hybrid ones made of silica/silicon has been investigated experimentally. It has been found, that in a hybrid silica/silicon micro resonators a bistability effect has an opposite sign in comparison with a silica disc micro resonator. The bistable behavior of silica micro resonators caused by a thermal nonlinearity exhibits transmission...
A spectral response of silica and hybrid silica/silicon disc microresonators is investigated and their different nonlinear behavior is discussed in terms of different sources of nonlinearity.
A spectral response of coupled silica disc microresonators is investigated and light intensity distribution among the coupled discs is measured. The latter depends on the resonance frequencies of each of the resonators and excitation condition.
We fabricated single-layer pitch-variable diffractive nanogratings on silicon nitride probe using e-beam lithography and subsequent pattern transfer techniques. The nanogratings consist of flexure folding beams suspended between two parallel cantilevers of known stiffness. The probe displacement, therefore the force, can be measured through grating transmission spectrum. We measured the mechanical...
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