Development of an Ultrabroad Bandwidth Source for Ultrafast Observation and Control of Physical, Chemical, and Biological Systems

该奖项来自主要研究仪器，将支持佛罗里达大学的仪器开发。一组物理学家和化学家对超快时间分辨率材料的宽带光谱探测有共同的需求，他们合作开发了一种高亮度、高重复率飞秒激光啁啾脉冲放大系统，该系统能够在200纳米到20微米的30年波长范围内提供高强度脉冲。持续时间接近10飞秒，强度接近每平方厘米100拍瓦的脉冲将以10千赫兹的重复频率发射。此外，该仪器将具有“雕刻”时间脉冲形状的能力，以产生“按需脉冲形状”。应用将包括研究树状大分子的超快化学反应，研究碳纳米管的非线性光学性质，研究蛋白质折叠，以及固态相变和分子运动的相干控制。该仪器将由一个校园共享设施操作，为未来的科学家提供跨学科的培训基地，这些科学家将在物理、化学、生物和材料领域应用超快光学技术。它也将成为科学和工程本科学生教学活动的一部分，通过建立nsf资助的夏季REU项目。该奖项来自主要研究仪器，将支持佛罗里达大学的仪器开发。一群物理学家和化学家共同需要宽带光谱能力来探测具有超快时间分辨率的材料，他们将开发一种高亮度、高重复率的飞秒激光啁啾脉冲放大系统，该系统能够在一定波长范围内提供高强度脉冲。该仪器将具有“雕刻”时间脉冲形状的能力，以产生“按需脉冲形状”。应用将包括研究树状大分子的超快化学反应，研究碳纳米管的非线性光学性质，研究蛋白质折叠，以及固态相变和分子运动的相干控制。该仪器将由一个校园共享设施操作，为未来的科学家提供跨学科的培训基地，这些科学家将在物理、化学、生物和材料领域应用超快光学技术。它也将成为科学和工程专业本科生教学活动的一部分，通过已建立的nsf资助的夏季REU项目。

This award from the Major Research Instrumentation will support instrument development at the University of Florida. A group of physicists and chemists with a common need for broadband spectroscopic probing of materials with ultrafast time resolution have teamed together to develop a high brightness, high repetition rate femtosecond laser chirped pulse amplifier system capable of providing high intensity pulses over a range of wavelengths spanning 3 decades from 200 nm to 20 microns. Pulses with temporal duration approaching 10 femtoseconds and intensities nearing 100 Petawatts per square centimeter will be delivered at a repetition rate of 10 Kilohertz. In addition, the instrument will have the capability to 'sculpt' temporal pulse shapes to produce 'pulse shapes on demand'. Applications will include investigations of ultrafast chemical reactions in dendrimers, studies of nonlinear optical properties of carbon nanotubes, investigations of protein folding, and coherent control of solid state phase transitions and molecular motion. The instrument will be operated by a campus wide shared facility serving cross disciplinary training ground for future scientists with programs in the application of ultrafast optical techniques to problems in physics, chemistry, biology and materials. It will allso be part of a teaching activity for undergraduate studenbts in science and engineering through established NSF-funded summer REU programs.This award from the Major Research Instrumentation will support instrument development at the University of Florida. A group of physicists and chemists with a common need for broadband spectroscopic capability to probe materials with ultrafast time resolution will develop a high brightness, high repetition rate femtosecond laser chirped pulse amplifier system capable of providing high intensity pulses over a range of wavelengths. The instrument will have the capability to 'sculpt' temporal pulse shapes to produce 'pulse shapes on demand'. Applications will include investigations of ultrafast chemical reactions in dendrimers, studies of nonlinear optical properties of carbon nanotubes, investigations of protein folding, and coherent control of solid state phase transitions and molecular motion. The instrument will be operated by a campus wide shared facility serving cross disciplinary training ground for future scientists with programs in the application of ultrafast optical techniques to problems in physics, chemistry, biology and materials. It will also be part of a teaching activity for undergraduate students in science and engineering through established NSF-funded summer REU programs.