№ lp_2_3_58595
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Supplementary scientific material detailing theoretical analysis, circuit modeling, biasing configuration, and electromagnetic characterization of a multi-bit graphene-based bias-encoded metasurface for terahertz wave-front shaping and orbital angular momentum beam generation.
Authors: Kasra Rouhi; Hamid Rajabalipanah; Ali Abdolali
Affiliations: School of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran; Applied Electromagnetic Laboratory, School of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran
Corresponding author: Ali Abdolali
Email: [email protected]
Institution: Iran University of Science and Technology
Laboratory: Applied Electromagnetic Laboratory
Subject area: Graphene-based metasurfaces; Terahertz wave-front shaping; Orbital angular momentum beams
Document type: Supplementary information
Components: External biasing circuit; EM coupling analysis; Circuit model of binary meta-atoms; IFFT-based far-field analysis; Phase gradient MGBM examples; Focused OAM beam generation; Reflection phase maps and chemical potential distributions; Effects of biasing lines
Materials: Graphene; Al2O3; polysilicon; Au/Cr contacts
Frequency range: Terahertz (THz)
Device type: Multi-bit graphene-based bias-encoded metasurface (MGBM)
Control method: DC gate voltages (Vg1, Vg2); FPGA-based programming
Physical mechanisms: Fowler–Nordheim tunneling; Field effect in graphene; Electron scattering and relaxation mechanisms
Price: 8 / 10 USD
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