Material Research through Thermal Evanescent Waves
| Project/Area Number |
24244046
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | The University of Tokyo |
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Principal Investigator |
KOMIYAMA Susumu 東京大学, 総合文化研究科, 特任研究員 (00153677)
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| Co-Investigator(Renkei-kenkyūsha) |
IKUSHIMA Kenji 東京農工大学, 大学院工学研究院, 准教授 (20334302)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥30,030,000 (Direct Cost: ¥23,100,000、Indirect Cost: ¥6,930,000)
Fiscal Year 2014: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Fiscal Year 2012: ¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
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| Keywords | 熱励起エバネセント波 / 近接場テラヘルツ波 / 表面フォノンポラリトン / 超高感度赤外光検出器 / 近接場光学 / 近接場テラヘルツ光 / 散乱型近接場光学 / グラフェン / ディラック電子 / 超高感度赤外光検出 |
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| Outline of Final Research Achievements |
Any material surface supports electromagnetic evanescent waves due to thermal motion of conduction electrons or ion cores. Here, we visualize thermal evanescent waves with unprecedented high spatial resolution, by incorporating a ultra-highly sensitive THz detectors in a near-field THz microscope. While revealing new aspects of matters, we also put forward further improvement of the equipment.
In polar crystals, importance of surface phonon polaritons is confirmed and the role of tip-surface coupling is clarified. In narrow metal wires evanescent waves are locally induced by electrical currents, demonstrating novel nano-thermometry. Preliminary measurements on three-dimensional topological insulator (Bi2Se3) and multi-layered grapheme confirm the existence of evanescent waves, indicating physical importance of measurements at low temperatures. Performance of CSIPs has been continuously improved during this study, by which most of the measurements were made possible.
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Report
(4 results)
Research Products
(26 results)
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[Presentation] Near-field microscopy of spontaneous evanescent waves2014
Author(s)
Yusuke Kajihara, Susumu Komiyama, Kuan-Ting Lin, and Sunmi Kim
Organizer
nfo13(Therteenth International Conference on Near-Field Optics, Nanophotonics, and Related Techniques)
Place of Presentation
Snowbird Mountain Resort, Salt Lake City, Utah(USA)
Year and Date
2014-08-31 – 2014-09-04
Related Report
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[Presentation] 電荷敏感型赤外光子検出器による2色検出2014
Author(s)
Sunmi Kim, Susumu Komiyama,Takeji Ueda, Takeshi Satoh, Yusuke Kajihara
Organizer
第61回応用物理学会春季学術講演会
Place of Presentation
青山学院大学（相模原市、神奈川県）
Related Report
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