Metal-Organic Hybrid Metamaterials for Spectral-Band Selective Active Terahertz Modulators
Source abstract
Abstract
Optically controlled spectral-band selective terahertz (THz) modulators based on metal-organic hybrid metamaterials were investigated. An artificially structured material, which consists of two single split-ring resonators put together on the split gap side, was patterned on a silicon substrate to generate frequency-selective properties. An active layer of an organic thin film (fullerene derivative [6,6]-phenyl-C61-butyric acid methyl ester, also called PCBM) was deposited on the metamaterial-silicon structure for modulating the transmission of incident THz radiation. The metal-organic hybrid metamaterials enabled active control of spectral bands present in the transmission spectra of THz waves. In addition, the changes in the photo-excited carrier density due to the transfer of charges between the layers were quantitatively analyzed by simulation results.
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Research context
OpenAlex topics: Terahertz technology and applications · Metamaterials and Metasurfaces Applications · Superconducting and THz Device Technology
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
S. LSI Metrology & Inspection, Samsung Electronics, Yongin 17113, Korea
Department of Physics and Optoelectronics Convergence Research Center, Chonnam National University, Gwangju 61186, Korea
Department of Physics and Department of Energy Systems Research, Ajou University, Suwon 16499, Korea
Advanced Photonics Research Institute, GIST, Gwangju 61005, Korea
Funding
Korea Electric Power Corporation · National Research Foundation of Korea
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