Fast modulation of intense thermal emission by gap-movable metasurfaces
| Project/Area Number |
15K13328
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nano/Microsystems
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
Miyazaki Hideki 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, グループリーダー (10262114)
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| Research Collaborator |
KASAYA Takeshi
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | マイクロ・ナノデバイス / メタマテリアル / メタ表面 / 熱放射 / 赤外光 |
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| Outline of Final Research Achievements |
Dynamic modulation of emissivity spectrum of a gap-movable metasurface of which the gap exhibits an ultra-small mechanical translation was experimentally demonstrated. The gap in a metasurface resonant at mid-infrared region around 3-4 micrometers made of metallic stripes and a metallic continuous mirror film was modulated by only 20-40 nanometers, and the change in the emissivity (absorption) was verified. This result suggests the possibility of a dynamic control of thermal emission from a metasurface with a thickness-mode piezoelectric oscillator operable at a high frequency as high as 100 MHz. If a similar metasurface is fabricated from tungsten and HfO2, intense thermal emitter at a high temperature as high as 1000 deg. C could be modulated at a high rate as high as 10-100 MHz.
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Report
(3 results)
Research Products
(11 results)
