Acquisition of an Optical Parametric Amplifier for High Magnetic Field Ultrafast Exciton Spectroscopy and Education

获取用于高磁场超快激子光谱和教育的光学参量放大器

• 批准号: 0216838
• 负责人: Junichiro Kono
• 金额: $ 18.45万
• 依托单位: William Marsh Rice University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-15 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0216838&HistoricalAwards=false
• 关键词: Acquisition; Optical; Parametric; Amplifier; Magnetic

With this award from the IMR program William Marsh Rice University will acquire an ultrafast laser system, consisting of a chirped pulse amplifier (CPA) and an optical parametric amplifier (OPA). This system will produce intense and coherent electromagnetic radiation with wavelength continuously tunable from 1.15 mm to 18 mm and significantly advance our on-going research at the National High Magnetic Field Laboratory (NHMFL). The principal investigators are currently developing an ultrafast optics facility at the NHMFL under the In-House Research Program, for the study of semiconductor quantum structures, especially for investigating the dynamics of excitons in high magnetic fields. Particular emphasis is placed on how to create and control quantum coherence in excitons that are simultaneously subjected to an intense laser field and an intense magnetic field. Such a system provides an ideal environment in which to address fundamental and unresolved issues in nonlinear and quantum optics in solids in a well-controlled manner. The laser field manipulates discrete internal states of excitons whereas the magnetic field freezes the center-of-mass motion of excitons and tunes the internal energy levels. The large spatial extent of excitons, compared to atoms, leads to strong light-matter coupling, and dramatic non-perturbative phenomena are expected. Such research provides significant insight into the fundamental physics of light-matter interaction and can answer whether light excitation in solids is really quantum, as in quantum optics of atoms. Undergraduate and graduate researchers, including students from underrepresented groups will be involved and will acquire expertise in cutting-edge techniques in ultrafast optics. %%%With this award from the Instrumentation for Materials Research program William Marsh University will acquire a state-of-the-art laser system, which will produce ultrashort pulses of electromagnetic radiation with wavelength continuously tunable in a very wide range and significantly advance our on-going research at the National High Magnetic Field Laboratory (NHMFL). The investigators are currently developing an ultrafast optics facility at the NHMFL under the In-House Research Program, for the study of semiconductor quantum structures, especially for investigating the dynamics of excitons in high magnetic fields. Such a project provides an ideal environment in which to address fundamental and unresolved issues in nonlinear and quantum optics in solidsin a well-controlled manner. The research will involve a team of undergraduate and graduate researchers, including students from underrepresented minority groups. They will acquire expertise in cutting-edge techniques in ultrafast optics.

通过IMR计划的奖项，威廉·马什·赖斯大学（William Marsh Rice University）将获得一个超快激光系统，该系统由搅动的脉冲放大器（CPA）和光学参数放大器（OPA）组成。 该系统将产生强烈而连贯的电磁辐射，并将波长从1.15 mm连续调谐到18毫米，并显着推进我们在国家高磁场实验室（NHMFL）正在进行的研究。主要研究人员目前正在NHMFL根据内部研究计划开发一个超快光学设施，以研究半导体量子结构，尤其是用于研究高磁场中激子的动态。 特别重点是如何在同时受到强烈激光场和强烈磁场的同时进行的激子中创建和控制量子相干性。 这样的系统提供了一个理想的环境，在该环境中，以良好的方式以固体方式解决了非线性和量子光学的基本问题和未解决的问题。 激光场操纵激发子的离散内部状态，而磁场冻结了激子的质量运动，并调整了内部能级。 与原子相比，激子的大空间范围可导致强烈的光结合和戏剧性的非扰动现象。 这样的研究提供了对光结合相互作用的基本物理学的重要见解，可以回答固体中的光激发是否真的是量子，就像原子的量子光学元件一样。包括来自代表性不足的小组的学生在内的本科和研究生研究人员将参与其中，并将获得超快光学技术的尖端技术方面的专业知识。 %% %%获得材料仪器研究计划的奖项，威廉·马什大学（William Marsh University）将获得最先进的激光系统，该系统将产生超时的电磁辐射脉冲，并在非常广泛的范围内连续调谐，并显着推进我们在国家高磁场实验室（NHMFL）的持续研究。 研究人员目前正在NHMFL根据内部研究计划开发一个超快光学设施，以研究半导体量子结构，特别是用于研究高磁场中激子的动力学。 这样的项目提供了一个理想的环境，在该环境中，以固体状态以非线性和量子光学的方式解决基本和未解决的问题。这项研究将涉及一个本科和研究生研究人员团队，包括来自代表性不足的少数群体的学生。他们将获得超快光学技术尖端技术方面的专业知识。