Spectral technique for measuring hyperfine structure of atoms

A new spectral technique for measuring the hyperfine structure of atoms is reported. A divergent atomic beam and a divergent laser beam are crossed. Because of the Doppler effect, the hyperfine structure of atomic levels will be directly displayed in the interaction region in the form of spatially resolved fluorescence arc bands. By measuring the spatial-fluorescence intensity distribution, it is possible to obtain the hyperfine splittings of atomic levels. Basic principles and experimental results are given.

飞秒光谱全息技术及飞秒整形技术的应用

飞秒光谱全息是飞秒脉冲整形技术中非常重要的一种方法，它可以实现飞秒脉冲信号的记录、再现和处理。主要介绍飞秒光谱全息技术及飞秒脉冲时空变换整形在飞秒化学领域的最新应用。