Coherent Control of Molecular Dynamics: Exploring and Understanding Control Mechanisms

分子动力学的相干控制：探索和理解控制机制

• 批准号: 0244748
• 负责人: Thomas Weinacht
• 金额: $ 40万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0244748&HistoricalAwards=false
• 关键词: Coherent; Control; Molecular; Dynamics; Exploring

This project, which combines research in physical chemistry, molecular physics, and learning algorithm development, focuses on the exploration of coherent control of small polyatomic molecular systems. The specific aims of the project are to understand the relationship between coherent vibrational motion and neutral molecular dissociation, and to explore mechanisms for controlling fragmentation channels in laser assisted neutral dissociation using shaped ultrafast optical pulses. One of the key elements of the project is understanding the results of control experiments that make use of feedback and learning algorithms to discover optimal laser pulses shapes for steering a molecule toward a desired reaction pathway. In a broader sense, the research has significant implications for chemical vapor deposition (CVD), as the research to be carried out will provide new techniques with potential as a new source in CVD, together with basic information about chemical processes essential to CVD. The work lies at the boundary between chemistry and physics and furthers understanding in terms of both quantum and classical physics as well as frequency and time domains. Students working on the projects will learn to work in an interdisciplinary environment and understand their observations from a variety of perspectives. This project is co-funded by the Divisions of Physics and Chemistry in the Mathematical and Physical Sciences Directorate.

这个项目结合了物理化学、分子物理学和学习算法开发的研究，专注于探索小多原子分子系统的相干控制。该项目的具体目标是了解相干振动运动与中性分子解离之间的关系，并探索利用整形超快光脉冲控制激光辅助中性解离中碎裂通道的机制。该项目的关键要素之一是了解控制实验的结果，这些实验利用反馈和学习算法来发现引导分子走向所需反应路径的最佳激光脉冲形状。在更广泛的意义上，这项研究对化学气相沉积(CVD)具有重大意义，因为即将开展的研究将提供有潜力成为CVD新来源的新技术，以及对CVD至关重要的化学过程的基本信息。这项工作位于化学和物理之间，并进一步加深了对量子物理和经典物理以及频率和时间域的理解。参与这些项目的学生将学习在跨学科的环境中工作，并从不同的角度理解他们的观察结果。该项目由数学和物理科学局的物理司和化学司共同资助。