Real-time THz wave near-field camera with metamaterial devices
| Project/Area Number |
17K18368
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electron device/Electronic equipment
Optical engineering, Photon science
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| Research Institution | Institute of Physical and Chemical Research |
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Principal Investigator |
Han Zhengli 国立研究開発法人理化学研究所, 光量子工学研究センター, 研究員 (20752702)
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | metamaterial / double-layer pattern / resonance mode / near-field coupling / film metamaterial / double layer pattern / resonance modes / film metamaterial device / テラヘルツ/赤外材料・素子 / 電子デバイス |
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| Outline of Final Research Achievements |
Metamaterial with double-layer split ring resonators (SRRs) by a film device was demonstrated with photolithography technique. Devices with film thickness of 40, 26 and 15 micron were developed, both with double-layer SRRs. The film release procedure was checked with several temperature conditions and optimized to a range around to a range about 45 degC. Finally, uniform films with size of 30 mm by 30 mm were obtained. The developed devices were measured by THz TDS (THz time domain spectroscopy) for checking the spectra performance, which well matched with the simulation results. During the optimization on the device process and design, a high transmission THz wave quarter wave plate based on film metamaterial with double layer metallic patterns was also demonstrated. We analyze the effects introduced by the near-field coupling between the doublelayer metallic patterns and the resonance modes. The near-field coupling plays an important role in the THz-wave device performance.
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| Academic Significance and Societal Importance of the Research Achievements |
Film metamaterial has flexible and thin thickness properties, which can be used in several applications including near-field imaging, sensing, etc. The development of the film metamaterial and the analysis of near-field coupling for the metamaterial design can serve as preliminary work for future.
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Report
(4 results)
Research Products
(19 results)
