Acquistion of Ultrafast Infrared Light Source

超快红外光源的获取

• 批准号: 0320665
• 负责人: Kenneth Eisenthal
• 金额: $ 27.88万
• 依托单位: Columbia University
• 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: 2003-08-01 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0320665&HistoricalAwards=false
• 关键词: Acquistion; Ultrafast; Infrared; Light; Source

With this award from the Major Research Instrumentation (MRI) Program, the Department of Chemistry at Columbia University will acquire an ultrafast infrared light source. This equipment will enhance research in the following areas: a) studies on the rates of energy flow, the dynamics of bond breaking, the formation of new species, and the existence of short-lived chemical intermediates on surfaces and in bulk media; b) studies on the ultrafast dynamics of low-lying electronic states relevant to nano-structures; c) use of nonlinear spectroscopic measurements for interface-specific probing of molecular vibrations; and d) experiments to harness the imaging capabilities in neuroscience investigations and to explore the use of IR pulses to trigger the firing of neurons. These new capabilities will be of direct and major significance to the many graduate students and post-docs involved in its use. The existence of a laboratory support structure will make it possible for students without extensive expertise in ultrafast spectroscopy to perform new measurements relevant to their research program. The impact of the infrared light source will also be felt at the undergraduate and high-school level by enhancing students' scientific training and stimulating their interest in scientific careers. In addition, the development of IR optical methods for probing and triggering nerve cells could lead to an understanding of the neuron function and in time to new treatments of neurological and psychiatric diseases. With respect to the development of molecular design principles derived from studies of polymer surfaces, new and improved biomaterials and alternatives to conventional photolithography can be obtained.

在主要研究仪器(MRI)计划的这一奖项下，哥伦比亚大学化学系将获得一个超快红外光源。这台设备将加强下列领域的研究：a)研究能量流动速度、键断裂动力学、新物种的形成以及表面和块状介质中短寿命化学中间体的存在情况；b)研究与纳米结构相关的低位电子态的超快动力学；c)利用非线性光谱测量进行特定界面的分子振动探测；d)进行实验，利用神经科学研究中的成像能力，探索使用红外脉冲触发神经元放电的方法。这些新的能力将对许多参与使用它的研究生和博士后具有直接和重大的意义。实验室支持结构的存在将使在超快光谱学方面没有广泛专业知识的学生有可能进行与他们的研究计划相关的新测量。通过加强学生的科学训练，激发他们对科学事业的兴趣，红外光源的影响也将在本科和高中层面感受到。此外，用于探测和触发神经细胞的红外光学方法的发展可能会导致对神经元功能的了解，并及时产生神经和精神疾病的新治疗方法。随着对聚合物表面研究的分子设计原理的发展，可以获得新的和改进的生物材料以及传统光刻的替代品。