EAGER: Development of parametrically-amplified vibrational sum-frequency generation

EAGER：参数放大振动和频生成的开发

• 批准号: 0969247
• 负责人: John Fourkas
• 金额: $ 29万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0969247&HistoricalAwards=false
• 关键词: EAGER; Development; parametrically; amplified; vibrational

In this project supported by the Chemical Structure, Mechanisms and Dynamics Program, Professor John Fourkas of the University of Maryland and his research group will develop a technique called parametrically amplified vibrational sum frequency generation (PAVSFG) for the study of the structure and dynamics of surfaces and interfaces. PAVSFG is an advanced version of conventional sum frequency generation spectroscopy, which is based on a second order nonlinear optical (NLO) process in which two low energy photons combine at a surface or interface to produce a high energy photon. Since second order NLO processes are very weak in intensity, the parametric amplification process developed in the Fourkas lab will have positive consequences for a wide range of surface and interfacial science investigations, including biological membranes and catalyst surfaces. This project will also be the vehicle for training students and post-doctoral researchers in cutting-edge optical physics and physical chemistry.

在化学结构，机制和动力学计划的支持下，马里兰州大学及其研究小组的约翰·四卡斯教授将开发一种称为参数放大的振动总和频率产生（PAVSFG）的技术，以研究表面和界面的结构和动力学。 PAVSFG是常规总和频率产生光谱的高级版本，该版本基于二阶非线性光学（NLO）过程，其中两个低能光子在表面或界面上组合以产生高能量光子。 由于二阶NLO过程的强度非常弱，因此在Fourkas Lab中开发的参数放大过程将对广泛的表面和界面科学研究产生积极的影响，包括生物膜和催化剂表面。该项目还将成为培训学生和博士后研究人员尖端光学物理和物理化学的工具。