2016 Fiscal Year Final Research Report
On-chip manipulation of the coupling between a THz light source and a photon detector using quantum transport channels
Project/Area Number |
25287071
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Condensed matter physics I
|
Research Institution | Tokyo University of Agriculture and Technology |
Principal Investigator |
Ikushima Kenji 東京農工大学, 工学(系)研究科(研究院), 准教授 (20334302)
|
Co-Investigator(Kenkyū-buntansha) |
好田 誠 東北大学, 工学(系)研究科(研究院), 准教授 (00420000)
|
Research Collaborator |
KOBAYASHI Takashi
VIDELIER Hadley
ITO Atsushi
OKANO Shun
|
Project Period (FY) |
2013-04-01 – 2017-03-31
|
Keywords | メゾスコピック系・局在 |
Outline of Final Research Achievements |
The purpose of this work is to realize the on-chip THz system in which the generation, transmission and detection are electrically driven in a single chip. The platform is in a two-dimensional electron system in strong magnetic field. Using a point-source from quantum Hall edge states and a quantum-dot single photon detector, the following results are obtained. (1) Single photon detection of THz waves propagating a coplanar waveguide (or resonating in a coplanar split ring) is demonstrated. (2) Using these on-chip THz systems, it is found that photon emission due to electrons injected by edge channels requires the spin-flip Landau-level transition, probably through the spin-orbit interaction due to edge drift motion. These results provide the feasibility of on-chip THz photon manipulation and imply the possible applications of photon manipulation due to spin-polarized quantum transport channels.
|
Free Research Field |
物性物理学
|