All-dielectric metasurfaces with full phase control by using only electric response
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Journal Title
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Volume Title
Perustieteiden korkeakoulu |
Master's thesis
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Authors
Date
2017-10-03
Department
Major/Subject
Radio Science and Engineering
Mcode
ELEC3043
Degree programme
Master’s Programme in Engineering Physics
Language
en
Pages
48
Series
Abstract
This thesis studies different approaches for designing transmitting metasurfaces. The goal was to develop a novel approach that enables full phase control of the transmitted field. The suggested method utilizes metasurfaces at oblique incidence, which enables excitation of additional resonating modes. Spectrally overlapped electric eigenmodes give 2pi phase coverage with high transmission amplitude. This approach is used in order to create a transmitarray, which refracts incident light at a desired angle. The results show that the suggested approach can be used to design robust and low-loss metasurfaces.Description
Supervisor
Tretyakov, SergeiThesis advisor
Diaz-Rubio, AnaKeywords
metasurfaces, all-dielectric, optics, full phase control, transmitarray