Observation of photoexcited carrier propagation using time-resolved multi-probe SNOM
| Project/Area Number |
15K04599
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Nanostructural physics
|
|---|
| Research Institution | University of Yamanashi |
|---|
Principal Investigator |
SAKAI Masaru 山梨大学, 大学院総合研究部, 准教授 (10371709)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
石川 陽 山梨大学, 大学院総合研究部, 准教授 (10508807)
東海林 篤 山梨大学, 大学院総合研究部, 准教授 (40392724)
|
|---|
| Project Period (FY) |
2015-04-01 – 2018-03-31
|
| Project Status |
Completed (Fiscal Year 2017)
|
| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
|
|---|
| Keywords | 近接場光学顕微鏡 / 時間分解測定 / キャリアダイナミクス |
|---|
| Outline of Final Research Achievements |
The purpose of this research is to clarify the propagation and/or diffusion process of photoexcited carriers generated in a semiconductor quantum well. We carried out both experimental and theoretical study. Experimentally, we developed a time-resolved multi-probe scanning near-field optical microscope that enables high resolution measurement in both spatial and time, and observed diffusion of photoexcited carriers in InGaN quantum well in detail. In theory, we constructed a phenomenological analytical model incorporating local excitation and luminescence processes into diffusion equations and identified important parameters in carrier diffusion from comparison with experimental results.
|
Report
(4 results)
Research Products
(33 results)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Experimental and Theoretical Investigation of Carrier Dynamics after Local Excitation with Two-Probe SNOM2016
Author(s)
K. Iwamoto, M. Sakai, T. Kougo, K. Uchiyama, K. Kishino, H. Hori, A. Ishikawa, and K. Kobayashi
Organizer
The 14th International Conference of Near-Field Optics, Nanophotonics and Related Techniques (NFO14)
Place of Presentation
Act City Hamamatsu, Hamamatsu, Japan
Year and Date
2016-09-04
Related Report
Int'l Joint Research
-
[Presentation] Development of Multi-Probe SNOM for Investigation of Carrier Dynamics in Semiconductor Quantum Wells2015
Author(s)
M. Sakai, Y. Miwa, A. Syouji, A. Ishikawa, K. Uchiyama, K. Kobayashi, T. Matsumoto, K. Kishino, and H. Hori
Organizer
The 10th Asia-Pacific Conference on Near-field Optics
Place of Presentation
Hakodate Research Center for Fisheries and Oceans, Hakodate, Hokkaido, Japan
Year and Date
2015-07-07
Related Report
Int'l Joint Research
-
[Presentation] Theory of Spatiotemporal Carrier Dynamics in a Semiconductor Quantum Well2015
Author(s)
A. Ishikawa, M. Sakai, K. Iwamoto, T. Kougo, Y. Miwa, K. Uchiyama, H. Hori, and K. Kobayashi
Organizer
The 10th Asia-Pacific Conference on Near-field Optics
Place of Presentation
Hakodate Research Center for Fisheries and Oceans, Hakodate, Hokkaido, Japan
Year and Date
2015-07-07
Related Report
Int'l Joint Research
-
-
-
-
-
-
-
-
