| Project/Area Number |
26287033
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
Maezawa Hiroyuki 大阪府立大学, 理学(系)研究科(研究院), 准教授 (00377780)
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| Co-Investigator(Renkei-kenkyūsha) |
YAMAMOTO Satoshi 東京大学, 大学院理学系研究科, 教授 (80182624)
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| Research Collaborator |
Oguchi Osamu 東京大学
Soma Tatsuya 東京大学
Ebisawa Yuji 東京大学
Saito Kosuke 大阪府立大学
Nishida Yuji 大阪府立大学
Kimura Kimihiro 大阪府立大学
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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 |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2014: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
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| Keywords | 天文学 / 地球・惑星科学 / 超伝導デバイス / テラヘルツ波 / ヘテロダイン分光 / 放射輸送モデル / リモートセンシング / 微細加工 / テラヘルツ / 宇宙物理学 / 超伝導検出素子 / デバイスプロセス / 電波天文学 / 地球惑星科学 / 超伝導検出器 / テラヘルツ分光 / 地球・惑星 / 暗黒星雲 / 太陽活動 / プラズマプロセス / ヘテロダインセンシング / 惑星科学 |
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| Outline of Final Research Achievements |
The terahertz(THz)-wave band lies between radio waves and the infrared bands, which is an unexplored wavelength region for highly sensitive heterodyne detectors. Spectral lines of carbon ions and oxygen atoms, and so on, responsible for the material circulation in galaxies, high excitation lines of various molecules, and important oxidants like OH radical in the Earth's and planetary atmospheres are located in the 1.8-2 THz band. For opening up a breakthrough in highly-resolved remote sensing of these gaseous species, an 1.8-2 THz band horn / waveguide type hot electron bolometer (HEB) mixer employing a superconducting NbTiN thin bridge was designed and the microfabrication technology was established. In addition, we verified the feasibility of predicted THz band limb sounding observations of Earth's, martian and venusian atmospheres with the HEB mixers on-board SMILES-2.
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