Browsing School of Pure and Applied Sciences by Author "Owiti, Edgar O"
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Broadband quarter-wave plate based on dielectric-embedded plasmonic metasurface
Owiti, Edgar O; Yang, Hanning; Ominde, Calvine F; Sun, Xiudong (Royal Society of Chemistry, 2017)High transmission plasmonic and all-dielectric metasurface wave plates have been reported in recentstudies. However, narrow bandwidth and low polarization conversion need to be addressed to attaineven better operation ... -
Polarization Converter with Controllable Birefringence Based on Hybrid All-Dielectric-Graphene Metasurface
Owiti, Edgar O; Yang, Hanning; Liu, Peng; Ominde, Calvine F (Nanoscale Research Letters, 2018)Previous studies on hybriddielectric-graphenemetasurfaceshavebeenusedtoimplementinducedtransparency devices,while exhibiting high Q-factors based on trapped magnetic resonances.Typically,the transparencywindows are ... -
Polarization independent and tunable plasmoninduced transparency for slow light
Yang, Hanning; Owiti, Edgar O; Yenpo, Pai; Sun, Xiudong (Royal Society of Chemistry, 2017)A novel metamaterial composed of a Ag nanoprism periodic tetramer is proposed in this paper. Themetamaterial has high structural symmetry and shows polarization independent plasmon-inducedtransparency (PIT), demonstrated ...