摘要
首先分析了飞秒激光与物质的作用原理和载流子激发,载流子散射和晶格热化等超快动力学过程,接着简要阐述了飞秒波谱检测技术的基本原理和实验装置,并在此基础上分别介绍了瞬态吸收波谱技术、瞬态偏振旋转技术和光子回波技术,结合实例对这些技术进行了分析,最后展望了瞬态动力学研究和飞秒波谱检测技术的应用前景。
The mechanism of carrier excitation is analyzed, and the ultrafast process of femto second laser acting on materials is described, Then the theoretical basis, experimental setup are introduced, and different measurement techniques, such as transient absorption spectroscopy, transient polarization rotation, photon echoes are explained with examples. Finally, the application prospect of measurement techniques of femto-second spectroscopy in the future is given.
出处
《激光与光电子学进展》
CSCD
2004年第8期6-12,共7页
Laser & Optoelectronics Progress
基金
国家自然科学基金面上项目(50275069)
江苏大学高级人才启动基金。
