Fabrication of low-threshold quantum-wire lasers and study on their lasing properties and physics

低阈值量子线激光器的制造及其激光特性和物理研究

• 批准号: 20360135
• 负责人: AKIYAMA Hidefumi
• 金额: $ 12.06万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20360135/
• 关键词: 薄膜・量子構造; 量子細線; レーザー; MBE; へき開再成長; 量子細線レーザー; 低しきい値; 光励起; 電流注入; 定量計測; 絶対感度

We studied high-quality T-shaped GaAs studied quantum-wire lasers by cleaved-edge overgrowth in molecular-beam-epitaxy, demonstrate their low-threshold lasing, and investigated lasing and basic optical properties quantitatively, to examine advantages and performances predicted by seminal theoretical proposals. We fabricated current-injection 15-period quantum-wire lasers with a vertical p-n junction geometry, an inverted current-injection 15-period quantum-wire lasers with an inverted p-n junction geometry, current-injection 20-period quantum-wire lasers with a parallel p-n junction geometry, undoped and n-type-modulation-doped single quantum-wire lasers, and other laser devices. We made current injection and optical pumping to the sample devices, generated charge-neutral and charge-imbalanced electron-hole carriers, and measured their lasing properties, gain spectra, and peak gain quantitatively. We compared the experimental results with quantitative calculations on the basis of semiconductor Bloch equations, and obtained good agreements in peak gain values and overall gain spectra except for the low energy tail structures.

我们研究了分子束外延中解理边过生长的高质量T型GaAs量子线激光器，展示了它们的低阈值激光，并定量地研究了激光和基本光学性质，以验证开创性的理论建议所预测的优势和性能。我们制作了垂直p-n结结构的电流注入15周期量子线激光器，反向p-n结结构的反向电流注入15周期量子线激光器，平行p-n结结构的电流注入20周期量子线激光器，非掺杂和n型调制掺杂的单量子线激光器，以及其他激光器件。我们对样品器件进行了电流注入和光泵浦，产生了电荷中性和电荷不平衡的电子-空穴载流子，并定量测量了它们的激光特性、增益谱和峰值增益。我们将实验结果与基于半导体Bloch方程的定量计算结果进行了比较，除了低能尾部结构外，在峰值增益值和总增益谱上都得到了很好的一致。

项目成果

Measurementsof Cavity-Length-Dependent Internal Differential Quantum Effciency andInternal Optical Loss in Laser Diodes

激光二极管中腔长相关的内部差分量子效率和内部光损耗的测量

• 发表时间: 2008
• 期刊: J. Appl. Phys
• 作者: Satoshi Inada;Masahiro Yoshita;Makoto Okano;Toshiyuki Ihara;Hidefumi Akiyama;and Liming Zhang
• 通讯作者: and Liming Zhang

Optical waveguide-transmission spectroscopy of one-dimensional excitons in T-shaped quantum wires

T形量子线中一维激子的光波导透射光谱

• 发表时间: 2010
• 作者: M.Yoshita;M.Okano;H.Akiyama;L.N.Pfeiffer;K.W.West
• 通讯作者: K.W.West

GaAs量子井戸の発光励起スペクトルにおける共鳴レーリー散乱の寄与

共振瑞利散射对 GaAs 量子阱发射激发光谱的贡献

• 发表时间: 2010
• 作者: 丸山俊;望月敏光;吉田正裕;秋山英文;Loren N.Pfeiffer;Ken W.West
• 通讯作者: Ken W.West

T型量子細線の光吸収計測と一次元励起子線幅の温度依存性

T型量子线的光吸收测量和一维激子线宽的温度依赖性

• 发表时间: 2010
• 作者: 吉田正裕;岡野真人;秋山英文;Loren Pfeiffer;ken West
• 通讯作者: ken West

Optical spectroscopy of lasers andfield-effect-type optical devices basedon high-quality T-shaped GaAs quantumwires

基于高质量T型砷化镓量子线的激光器光谱和场效应光学器件

• 发表时间: 2008
• 作者: H. Takahashi;M. Tsunoda;K. Fukumoto;T. Nakamura;K. Arai;T. Kinoshita;and M. Takahashi;福島俊之;M. Tsunoda;Hidefumi Akiyama
• 通讯作者: Hidefumi Akiyama