Asymmetric Transmission through Single-Layered All-Dielectric Metasurface

Aima Zahid, Hafiz Saad Khaliq, Muhammad Zubair, Tauseef Tauqeer, Muhammad Qasim Mehmood

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Optical devices require simultaneous control over wavefront and polarization of light to achieve various phenomena such as asymmetric transmission, reflection, and selective absorption. Traditionally, cascaded bulk components were used in these systems, which worked by manipulating the propagation phase of the incident light. These large components made the system impossible to miniaturize, which led to an interest in compact optical systems and the search for novel materials which would enable the system to exhibit the same phase-dictated phenomena through wavefront shaping. Here, we present a single-layered all-dielectric metasurface structure with nano-resonators which engineer the wavefront to achieve asymmetric transmission of circularly polarized light. A mathematical analysis of the phenomena is done using Jones Calculus. Finite Difference Time Domain (FDTD) Solutions is then used to optimize the structure hence achieving a 76% Asymmetric Transmission Parameter.
Original languageEnglish (US)
Title of host publicationProceedings of 2020 17th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages26-30
Number of pages5
ISBN (Print)9781728146768
DOIs
StatePublished - Jan 1 2020
Externally publishedYes

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