飞秒和频光谱-超快闪光加热联用技术原位表征自组装体系结构和组装过程

来源 :国家自然科学基金委员会“可控自组装体系及其功能化”重大研究计划年度会议暨研讨会 | 被引量 : 0次 | 上传用户:mimibbs
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本项目的研究内容和目标主要是:发展基于飞秒时间分辨宽带振动和频光谱和超快闪光加热的联用技术,用时间分辨宽带振动和频光谱实时跟踪组装体系分子被扰动后,由混乱排列回复到组装有序排列动态过程的振动光谱、电子光谱、分子取向、去相位时间、分子间和分子内超快能量传递等结构和超快动力学过程.项目执行期间主要完成的工作:研制了飞秒和频光谱(FS-SFG)装置.该装置每一个红外脉冲可以覆盖>160cm-1的光谱区域,可调谐的红外脉冲可以覆盖2.6-15μm,可见脉冲可以覆盖300-900nm,光谱分辨能力~7cm-1,时间分辨能力150fs.
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