2013 Fiscal Year Final Research Report
Development of practical theoretical calculation of semiconductor-laser gain including many-body Coulomb interactions and its experimental verifications with high-quality quantum-wire lasers
| Project/Area Number |
23360135
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Electronic materials/Electric materials
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2011-04-01 – 2014-03-31
|
| Keywords | 量子細線 / 半導体レーザー / 光学利得 / 多体効果 / 理論計算 |
|---|
| Research Abstract |
Optical gain in semiconductor lasers has practically been calculated with band theories based on free electron approximations. In this study, we introduced mean-field approximations for many-body Coulomb interactions among carriers in two-dimensional quantum well system and one-dimensional quantum wire system. We developed practical calculation codes, and quantitatively calculated mode gain of the lasers by determining calculation parameters on the basis of the k-p perturbation theory. We also developed simplified calculation method by neglecting the wave-number dependence of screening for the Coulomb interactions. In the experiments, we precisely measured carrier density dependence of the gain spectrum in a 3 period T-shaped quantum-wire-laser sample with high quality. By comparing the peak gain values and quantitative gain spectra obtained with the theories and experiments, we verified the usefulness of the developed theories.
|
Research Products
(54 results)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Journal Article] Biexciton Luminescence from Individual Isoelectronic Traps in Nitrogen Delta-Doped GaAs2012
Author(s)
Kengo Takamiya, Toshiyuki Fukushima, Shuhei Yagi, Yasuto Hijikata, Toshimitsu Mochizuki, Masahiro Yoshita, Hidefumi Akiyama, Shigeyuki Kuboya, Kentaro Onabe, Ryuji Katayama, and Hiroyuki Yaguchi
-
Journal Title
Appl. Phys. Express
Volume: 5
Pages: 111201
DOI
-
[Journal Article] Electrical and Optical Properties of GaNAs/GaAs MQW p-i-n Junctions2012
Author(s)
Kohei Arimoto, Masahiro Shiraga, Hideto Shirai, Shunsuke Takeda, Masato Ohmori, Hidefumi Akiyama, Toshimitsu Mochizuki, Kenzo Yamaguchi, Hayato Miyagawa, Noriaki Tsurumachi, Shunsuke Nakanishi, and Shyun Koshiba
-
Journal Title
Transactions of the Materials Research Society of Japan
Volume: 37
Pages: 193-196
DOI
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Quantitative Measurements, In-situ Spectroscopy, and Quantum-Chemistry Theoretical Studies on Firefly Bioluminescence2013
Author(s)
Hidefumi Akiyama, Miyabi Hiyama, Toshimitsu Mochizuki, Yu Wang, Yoriko Ando
Organizer
The 2nd DYCE-ASIA / ISSP-international workshop on "Life Science and Photonics"
Place of Presentation
Media Hall, Kashiwa Library, Univ of Tokyo, Chiba, Japan
Year and Date
20131117-18
-
-
-
-
[Presentation] バルクGaAs 励起子のテラヘルツ分光2013
Author(s)
関口文哉, 鈴木剛, 望月敏光, 金昌秀, 秋山英文, Loren N. Pfeiffer, Ken W. West, 島野亮
Organizer
日本物理学会2013年秋季大会
Place of Presentation
徳島大学 常三島キャンパス
Year and Date
20130925-28
-
-
-
-
-
-
-
-
-
-
