Ultrafast optical processes and carrier dynamics in semiconductor nanostructures/processus optiques ultrarapides et dynamiques des porteurs dans des nanostructures

半导体纳米结构中的超快光学过程和载流子动力学/超高速光学过程和纳米结构的动力学

• 批准号: 155452-2006
• 负责人: Morris, Denis
• 金额: $ 2.9万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=336546
• 关键词: Ultrafast; optical; processes; carrier; dynamics

In the last decade, femtosecond optical spectroscopy techniques have been used with great success to probe various ultrafast phenomena related to the motion of electrons and atoms in solids. New developments related to optical pulse shaping techniques and the new possibilities offered by the generation of ultrashort pulses in the terahertz region have opened several research opportunities in the field of semiconductor nanostructures physics. Among them, we find studies of electronic properties of coupled quantum dots (QDs) and aligned dot chains, optical manipulation of spins in QDs, coherent control experiments in QD structures, tunneling transport properties and nonlinear optical properties of QDs in the presence of intense THz field. The objectives of this research program aim to address some of these fundamental studies using state of the art femtosecond optical technologies. This research could find several important scientific and technological applications in quantum computing, in communications, in remote sensing and bio-sensing, as well as in molecular engineering.

在过去的十年中，飞秒光谱技术已被成功地用于探测与固体中电子和原子运动有关的各种超快现象。与光脉冲整形技术相关的新发展以及在太赫兹区域产生超短脉冲所提供的新可能性已经在半导体纳米结构物理学领域开辟了若干研究机会。其中包括量子点的电子性质、量子点自旋的光学调控、量子点结构的相干控制实验、量子点的隧穿输运性质以及量子点在强太赫兹场下的非线性光学性质。本研究计划的目标旨在解决一些使用最先进的飞秒光学技术的基础研究。这项研究可以在量子计算、通信、遥感和生物传感以及分子工程中找到几个重要的科学和技术应用。