Metamaterial with a negative refractive index for real-time terahertz imaging with sub-wavelength resolution
| Project/Area Number |
26706017
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Optical engineering, Photon science
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| Research Institution | Tokyo University of Agriculture and Technology (2017)
Ibaraki University (2014-2016) |
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Principal Investigator |
Suzuki Takehito 東京農工大学, 工学(系)研究科(研究院), 准教授 (60550506)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2014: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
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| Keywords | テラヘルツ波帯 / メタマテリアル / 負の屈折率 / ゼロ屈折率 / 高屈折率 / 超高屈折率 / テラヘルツ波 / 極限屈折率材料 / テラヘルツイメージャー / テラヘルツ / ゼロ近傍屈折率 |
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| Outline of Final Research Achievements |
We demonstrate a negative refractive index metamaterial with high transmission, low reflection, and low loss in the terahertz waveband. The metamaterial with a negative refractive index consists of asymmetrically aligned paired cut metal wires on the front and back of a dielectric substrate. A cyclo-olefin polymer film with copper layers on the front and back is etched. Measurements by terahertz time-domain spectroscopy (THz-TDS) demonstrate a metamaterial with a negative refractive index of -4.2+j0.17, high transmitted power of 81.5%, low reflected power of 4.3%, and a high figure of merit (FOM) of 24.2 at 0.42 THz.
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Report
(5 results)
Research Products
(56 results)
