Chunjie Feng, Xiaobo Zhu, Yanghui Wu, Chen Fu, Huiyu Chang, Yutao Yue, Wenhua Gu. Application of electrostatic jet-print technology in terahertz metasurface devices fabrication[J]. Infrared and Laser Engineering, 2022, 51(2): 20210878
- Infrared and Laser Engineering
- Vol. 51, Issue 2, 20210878 (2022)
Fig. 1. (a) Schematic diagram and (b) optical picture of the home-made electrostatic jet printing system based on EHD principle
Fig. 2. Picture of a nozzle with an internal diameter of 500 μm producing a jet with the diameter of 4.4 μm (Scale bar is 300 μm)
Fig. 3. (a) A transparent metal grid sample with the line width of about 5 μm on a glass substrate (the scale bar is 200 μm and 50 μm); (b) Visible light transmission spectrum of the sample
Fig. 4. Complex patterns with discontinuous points printed on the glass substrate (Scale bar is 5 mm)
Fig. 5. Schematic of (a) structure and (b) equivalent circuit model of the multilayer terahertz absorber
Fig. 6. Absorption curves obtained by simulation, equivalent circuit calculation, and experimental results
Fig. 7. Picture of the terahertz absorber sample indicating the good optical transparency (Scale bar is 400 μm)
Fig. 8. Schematic of (a) unit structure and (b) the top schematic view of a terahertz polarization converter
Fig. 9. (a) Co- and cross-polarized reflectance and (b) polarization conversion rate of the terahertz polarization converter
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Table 1. Optimized parameters of the terahertz absorber
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