| 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)
|
|---|
| 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.
|
