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

开发用于物理、化学和生物系统超快观测和控制的超宽带源

• 批准号: 0115797
• 负责人: David Reitze
• 金额: $ 30万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2004-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0115797&HistoricalAwards=false
• 关键词: Development; Ultrabroad; Bandwidth; Source; Ultrafast

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.

主要研究仪器的这一奖项将支持佛罗里达大学的仪器开发。一组物理学家和化学家共同需要超快时间分辨率的宽带光谱探测材料，他们合作开发了一种高亮度，高重复率的飞秒激光啁啾脉冲放大器系统，能够提供从200 nm到20微米的30倍波长范围内的高强度脉冲。 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10千赫兹的重复率传送。 此外，该仪器将有能力“雕刻”时间脉冲形状，以产生“按需脉冲形状”。应用将包括超快化学反应的树枝状聚合物的研究，碳纳米管的非线性光学性质的研究，蛋白质折叠的研究，以及固态相变和分子运动的相干控制。该仪器将由校园范围内的共享设施运营，为未来的科学家提供跨学科的培训场所，这些科学家将超快光学技术应用于物理，化学，生物和材料问题。这也将是一个教学活动的一部分，本科学生在科学和工程，通过建立NSF资助的夏季REU计划。这个奖项从主要研究仪器将支持仪器的发展在佛罗里达大学。一组物理学家和化学家共同需要宽带光谱能力，以超快时间分辨率探测材料，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器系统，能够在一定波长范围内提供高强度脉冲。该仪器将有能力“雕刻”时间脉冲形状，以产生“按需脉冲形状”。应用将包括超快化学反应的树枝状聚合物的研究，碳纳米管的非线性光学性质的研究，蛋白质折叠的研究，以及固态相变和分子运动的相干控制。该仪器将由校园范围内的共享设施运营，为未来的科学家提供跨学科的培训场所，这些科学家将超快光学技术应用于物理，化学，生物和材料问题。它也将是通过建立NSF资助的夏季REU课程为科学和工程专业本科生开展的教学活动的一部分。