Ultrafast Laser Pulse Shaping for Quantum Molecular Control and Laser Selective Chemistry

用于量子分子控制和激光选择性化学的超快激光脉冲整形

• 批准号: 9412948
• 负责人: Warren Warren
• 金额: $ 61.33万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-08-01 至 1997-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9412948&HistoricalAwards=false
• 关键词: Ultrafast; Laser; Pulse; Shaping; Quantum

In this project in the Experimental Physical Chemistry Program of the Chemistry Division, Warren will use ultrafast laser pulse-shaping techniques to produce molecules in selected quantum states. A new pulse shaping approach will produce easily adjustable waveforms with femtosecond structural features. A very rapid method of pulse shape detection will also be developed. These techniques will be applied to molecular systems to try to alter relaxation rates, selectively excite molecules in the presence of competing absorbers, or force molecules up anharmonic ladders. Experimentally measured molecular responses will be used to make the target molecule itself optimize the design of the manipulation pulse. %%% In these experiments Warren will be studying how to excite molecules which are about to react so that the reactions will go along one desired pathway rather than along one or several undesired pathways. This type of ability to control the outcome of chemical reactions will have an effect on many chemical manufacturing processes, making some possible which previously were not, or making others more efficient and cost-effective.

在这个项目中，在实验物理化学计划的 化学部，沃伦将使用超快激光脉冲整形 制造特定量子态分子的技术。 新的脉冲 整形方法将产生易于调整的波形， 飞秒结构特征。 一种非常快速的脉冲形状方法 还将开发检测。 这些技术将应用于 分子系统试图改变弛豫速率，选择性地激发 分子在竞争吸收剂的存在下，或迫使分子 非调和阶梯 实验测量的分子反应将是 用于使靶分子本身优化设计， 操纵脉冲 在这些实验中沃伦将研究如何激发分子 它们即将反应，使得反应将沿着期望的方向进行， 路径而不是沿着沿着一个或多个不期望的路径。 这种类型 控制化学反应结果的能力， 影响许多化学制造过程，使一些可能的 以前没有的，或者使其他人更有效率， 性价比