Ultrahigh Vacuum Surface Optical Spectroscopy

这是一个关于电子材料表面光谱学（SOS）的理论/实验合作研究项目。目的是了解控制任何材料表面共振拉曼光谱（SRRS）、二次谐波产生（SSHG）和超拉曼光谱（SHRS）强度的基本因素。在分子束外延（MBE）和激光微化学（LMC）方面的应用得到了发展。交互理论研究旨在解释实验光谱、动力学参数，并为新材料的表面光学性质和新的光谱现象提供预测能力。将要进行的具体项目包括利用可见光和紫外线、连续波、锁模激光对选定的吸附剂进行SRRS研究；通过MBE进行材料生长的时间分辨和空间分辨SSHG研究；以及用于产生亚微米级表面粗糙度的半导体和过渡金属加工的LMC方法。

This is a collaborative theory/experiment research project on the surface optical spectroscopy (SOS) of electronic materials. The objective is to understand the fundamental factors which govern the intensity of surface resonance Raman spectroscopy (SRRS), second harmonic generation (SSHG), and hyper-Raman spectroscopy (SHRS) at the surface of any material. Applications to molecular beam epitaxy (MBE) and laser microchemistry (LMC) are developed. Interactive theoretical studies are designed to interpret the experimental spectra, kinetic parameters, and provide predictive capability for the surface optical properties of new materials and new spectroscopic phenomena. The specific projects to be undertaken include SRRS studies of selected adsorbates using visible and UV, CW, mode-locked lasers; time-resolved and space- resolved SSHG studies of materials growth via MBE; and LMC methods for semiconductor and transition metal processing which produce submicron scale surface roughness.