Nuclear imaging with single quantum dot spectroscopy

单量子点光谱核成像

• 批准号: 21310064
• 负责人: KURODA Takashi
• 金额: $ 12.23万
• 依托单位: National Institute for Materials Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21310064/
• 关键词: ナノ構造物性; 量子ドット; レーザー分光; 核磁場効果

We propose to demonstrate nuclear spin imaging by means of single quantum dot spectroscopy. Since the photoluminescence spectral shift due to the nuclear effect is as small as10μeV, we built up ultra high-resolution spectrometers for this purpose. As a result we successfully observed fine-structure splits due to the electron-hole long-range interactions, their quantum dot size dependence, and their removal in highly-symmetric QDs which is newly grown by droplet epitaxy.

我们建议通过单量子点光谱来演示核自旋成像。由于核效应引起的光致发光光谱漂移小至10 μeV，我们为此建立了超高分辨率光谱仪。因此，我们成功地观察到精细结构分裂由于电子-空穴长程相互作用，它们的量子点尺寸的依赖性，和它们的去除高度对称的量子点，这是新生长的液滴外延。

项目成果

Ultra-narrow emission from single GaAs self-assembled quantum dots grown by droplet epitaxy

• DOI: 10.1088/0957-4484/20/39/395601
• 发表时间: 2009-09-30
• 期刊: NANOTECHNOLOGY
• 影响因子: 3.5
• 作者: Mano, T.;Abbarchi, M.;Gurioli, M.
• 通讯作者: Gurioli, M.

Dark-Bright Mixing of Interband Transitions in Symmetric Semiconductor Quantum Dots

• DOI: 10.1103/physrevlett.107.166604
• 发表时间: 2011-10-14
• 期刊: PHYSICAL REVIEW LETTERS
• 影响因子: 8.6
• 作者: Sallen, G.;Urbaszek, B.;Amand, T.
• 通讯作者: Amand, T.

Magneto-optical properties of excitonic complexes in GaAs self-assembled quantum dots

• DOI: 10.1103/physrevb.81.035334
• 发表时间: 2010-01-01
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Abbarchi, M.;Kuroda, T.;Gurioli, M.
• 通讯作者: Gurioli, M.

Energy renormalization of exciton complexes in GaAs quantum dots

• DOI: 10.1103/physrevb.82.201301
• 发表时间: 2010-11-04
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Abbarchi, Marco;Kuroda, Takashi;Tsuchiya, Takuma
• 通讯作者: Tsuchiya, Takuma

Energy renormalization on exciton complexes in strain-free GaAs quantum dots

无应变 GaAs 量子点中激子复合物的能量重整化

• 发表时间: 2010
• 作者: Uchida M.;Uchida M.;Kondo M.;Shibata Y.;河合武司;T. Kuroda
• 通讯作者: T. Kuroda