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24 April 2020 A platform for ultrafast control in THz graphene-based metasurfaces
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Abstract
We discuss the unique possibilities stemming from exploiting the exotic properties of artificial metasurfaces designed for operation in the THz regime. We mainly focus on graphene based metasurfaces acting as modulators for the THz regime. Graphene exhibits unique optical properties particularly in the THz spectrum, where it predominantly exhibits a Drude-like response. Here we present that ultrafast modulation response in a graphene thin film absorber which can be assessed with use of a broadband THz time-domain-spectroscopic system (THz-TDS) in an IR pump-THz probe configuration. The simple scheme of the absorber can be used as a platform for ultrafast flat optics and metasurfaces.
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Anna C. Tasolamprou, Anastasios D. Koulouklidis, George Kenanakis, Christina Daskalaki, Stelios Tzortzakis, Charalampros Mavidis, George Deligiorgis, Zacharias Viskadourakis, Polina Kuzhir, Maria Kafesaki, Eleftherios N. Economou, and Costas M. Soukoulis "A platform for ultrafast control in THz graphene-based metasurfaces", Proc. SPIE 11390, Next-Generation Spectroscopic Technologies XIII, 113900B (24 April 2020); https://doi.org/10.1117/12.2559377
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