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Q-factor enhancement in all-dielectric anisotropic nanoresonators

Liu, Wei; Miroshnichenko, Andrey; Kivshar, Yuri


It is proposed and demonstrated that the Q factor of optical resonators can be significantly enhanced by introducing an extra anisotropic cladding. We study the optical resonances of all-dielectric core-shell nanoresonators and show that radially anisotropic claddings can be employed to squeeze more energy into the core area, leading to stronger light confinement and thus significant Q-factor enhancement. We further demonstrate that the required homogenous claddings of unusual anisotropy...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
Source: Physical Review B: Condensed Matter and Materials
DOI: 10.1103/PhysRevB.94.195436
Access Rights: Open Access


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