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|Title:||STUDY OF VORTEX BEAM AND ORBITAL ANGULAR MOMENTUM BY METASURFACE||Authors:||MEI SHENGTAO||Keywords:||metasurface, OAM, beam, vortex, hologram, tunable||Issue Date:||19-May-2017||Citation:||MEI SHENGTAO (2017-05-19). STUDY OF VORTEX BEAM AND ORBITAL ANGULAR MOMENTUM BY METASURFACE. ScholarBank@NUS Repository.||Abstract:||Recent explosive growth of research on metasurfaces has created a myriad of attractive applications within the field of flat optics, paving an avenue for extending current research results to other fields such as biology and physics. This thesis mainly focused on the research topics of manipulation of vortex beams via metasurfaces, including generation/reception, hologram and tuning mechanism. To be specific, the main contributions can be summarized as: 1) semi-ring slits for OAM detection and discrimination; 2) nano-void photon sieves array to realize complex OAM multiplexing strategy; 3) titanium dioxide (TiO2) metasurfaces for the demonstration of vortex holograms; and 4) reconfigurable chalcogenide compound Ge2Sb2Te5 (GST) metasurfaces to demonstrate the intriguing tunable scheme.||URI:||http://scholarbank.nus.edu.sg/handle/10635/138481|
|Appears in Collections:||Ph.D Theses (Open)|
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