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Electrically Tunable Ring Resonators Incorporating Nematic Liquid Crystals as Cladding Layers

Research Area: Nanophotonics Year: 2003
Type of Publication: Article Keywords: nematic liquid crystals, organic compounds, micromechanical resonators, photolithography, refractive index, optical fibre cladding, micro-optics, optical resonators
Authors: Maune, Brett; Lawson, R.; Gunn, Cary; Scherer, Axel; Dalton, L.
Journal: Applied Physics Letters Volume: 83
Number: 23 Pages: 4689-4691
Month: December
Abstract:
We have demonstrated electrical tuning in ring resonators fabricated from silicon-on-insulator wafers by incorporating nematic liquid crystals (NLCs) as the waveguide top and side cladding material. Photolithographically defined electrodes aligned around the ring resonator were used to control the orientation of the NLCs to modulate the cladding refractive index and, hence, the resonant wavelengths of the ring resonator.
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