MRI: Acquisition of a High-Pulse-Energy Ultrafast Laser System for Interdisciplinary Research

MRI：获取用于跨学科研究的高脉冲能量超快激光系统

• 批准号: 0922987
• 负责人: Robert Lucht
• 金额: $ 48.58万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0922987&HistoricalAwards=false
• 关键词: MRI; Acquisition; Pulse; Energy; Ultrafast

0922987Lucht"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."Funds for the purchase of an advanced ultrafast laser system for nonlinear spectroscopy are requested. The system that specified is a Spectra-Physics Spitfire Pro 40F-5W ultrafast laser system. The pulse length of the fundamental output of the system is 40 femtoseconds (fs). The system can be operated at two different repetition rates, 1 kHz or 5 kHz. At the repetition rate of 5 kHz, the output pulse energy is 1 mJ; for the repetition rate of 1 kHz, the output pulse energy is 5mJ. A state-of-the-art pulse shaper based on multiphoton intrapulse interference phase scan (MIIPS) is also requested. The MIIPS pulse shaper will be very useful for phase correction of Fourier-transform-limited pulses or for accurate phase-shaping using input phase functions. This ultrafast laser system user facility will be a resource for a wide range of interdisciplinary research. At present there is no comparable laser system at Purdue University. Consequently Purdue researchers are at a serious disadvantage in proposing research in emerging new fields such as diagnostic applications of femtosecond lasers, X-ray generation, and attosecond spectroscopy. Applications of the new laser system are proposed in biomedical spectroscopy, diagnostics in turbulent reacting flows, coherent phonon spectroscopy in the solid state, multiphoton spectroscopy for proton structure studies, soft X-ray generation, and attosecond spectroscopy.

0922987 Lucht“该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。“要求提供资金，用于购买先进的非线性光谱学超快激光系统。指定的系统是Spectra-Physics Spitfire Pro 40 F-5 W超快激光系统。该系统的基本输出的脉冲长度为40飞秒（fs）。 该系统可以在两种不同的重复频率下工作，1 kHz或5 kHz。在5 kHz的重复率下，输出脉冲能量为1 mJ;对于1 kHz的重复率，输出脉冲能量为5 mJ。一个国家的最先进的脉冲整形器的基础上多光子脉冲内干涉相位扫描（MIIPS）也被要求。MIIPS脉冲整形器对于傅里叶变换限制脉冲的相位校正或使用输入相位函数进行精确相位整形将是非常有用的。这个超快激光系统用户设施将成为广泛的跨学科研究的资源。目前，普渡大学还没有类似的激光系统。因此，普渡大学的研究人员在提出研究新兴领域，如飞秒激光的诊断应用，X射线产生和阿秒光谱学方面处于严重的劣势。新的激光系统的应用提出了在生物医学光谱学，诊断在湍流反应流，相干声子光谱学在固态，多光子光谱学质子结构的研究，软X射线的产生，和阿秒光谱。