Strong Field Control of Molecular Processes

在这个由化学系化学结构、动力学和机制计划资助的项目中，坦普尔大学化学系的罗伯特·莱维斯教授试图了解多原子分子受到激光场作用时发生的过程，激光场的量级相当于电子与原子核的结合。在这种激光强度范围内，分子可以被重新编程以驱动所需的物理和化学过程，包括相干的旋转和振动运动、化学反应和非共振汽化。本研究试图通过实验和理论研究来理解强场控制机制。学生和博士后在实验(激光和超快光学)和理论方面接受培训，因此，他们是高科技科学和创新的重要国家资源。这项研究正在推动生物医学诊断和治疗、高分子合成、纳米材料合成、分子电子学和化学/生物传感器的进展。利用强场化学研究的成果，开发了使用自适应强场质谱学的新的化学试剂检测系统，开发了新的传感范例，并开发了使用基于激光灯丝的方法进行远距离检测的高灵敏度分子监测器。

In this project funded by the Chemical Structure, Dynamics, and Mechanisms Program of the Chemistry Division, Professor Robert Levis of the Chemistry Department at Temple University seeks to understand the processes that occur when polyatomic molecules are subjected to laser fields on the order of the fields binding electrons to nuclei. In this laser intensity regime, the molecule can be reprogrammed to drive desired physical and chemical processes including coherent rotational and vibrational motion, chemical reaction and non-resonant vaporization. This research seeks to understand strong field control mechanisms through experimental and theoretical investigations. Students and postdoctoral associates are trained in experiment (lasers and ultrafast optics) and theory and as such, represent an important national resource for high technology science and innovation.This research is leading to advances for biomedical diagnostics and therapeutics, macromolecule synthesis, nanomaterials synthesis, molecular electronics, and chemical/biological sensors. The findings of strong field chemical research have been leveraged to develop new chemical agent detection systems using adaptive strong field mass spectrometry, to develop new sensing paradigms, and to develop highly sensitive molecular monitors for stand off detection using laser filament-based methods.