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Electrohydrodynamic Inkjet Printing of SRR Array for Metamaterial in Terahertz Frequency Regime
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- Authors
- Sang Soon Oh, Vu Dat Nguyen, Do Young Byun, Choon Gi Choi
- Issue Date
- 2010-08
- Citation
- International Conference on Nanotechnology Joint Symposium with NANO KOREA (IEEE NANO) 2010, pp.1-2
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- Metamaterials in terahertz (THz) frequency regime have attracted much attention due to its potential application in sources, lenses, switches, modulators and detectors. Recently, it was shown that THz metamaterial can be easily fabricated using the super-fine inkjet printing technology. The ability to draw microstructures with a few micron order accuracy provides us with a very efficient way to implement a large-size of metamaterial in terahertz frequency regime. In this paper, we report that the electrohydrodynamic (EHD) inkjet printing technology is a very powerful tool in the fabrication of THz metamaterials, particularly large-area and multilayer metamaterial devices. We fabricated wire-grid polarizers (WGPs) and split-ring resonator (SRR) metamaterials using the EHD inkjet printing and characterized the transmission properties of the WGPs and SRRs using the time-domain spectroscopy (TDS). The measured transmission spectra and the effective indices of the metamaterials are compared with the simulation results obtained by the finite-difference time-domain (FDTD) method. Using the FDTD method, we analyzed the field distribution of the metamaterial devices for the incident THz waves and discussed on the interlayer mismatch issues for double layer SRR metamaterials.
- KSP Keywords
- Double layer, Field distribution, Finite-difference time-domain (FDTD) method, Metamaterial devices, Potential applications, Super-fine, THz metamaterials, THz waves, Transmission properties, Transmission spectra, Wire-grid