High-resolution spectroscopy of the hydrogen 1S-2S transition in an atomic beam.
High-resolution spectroscopy of the hydrogen 1S-2S transition in an atomic beam.
复制标题
原子束中氢 1S-2S 跃迁的高分辨率光谱。
作者：
Zimmermann;Kallenbach;Haensch
我们通过原子束中的无多普勒双光子光谱观察到了原子氢的 1S-2S 跃迁，分辨率为 1011 中的 5 份。显着不对称的线形状受到相对论多普勒效应的强烈影响。新的高分辨率可用于改进里德伯常数、1S 兰姆位移以及氢和氘的同位素位移的测量。
We have observed the 1S‐2S transition of atomic hydrogen with a resolution of 5 parts in 1011 by means of Doppler‐free two photon spectroscopy in an atomic beam. The significantly asymmetric line shape is strongly affected by the relativistic Doppler effect. The new high resolution can be used for improved measurements of the Rydberg constant, the 1S Lamb shift, and the isotope shift of hydrogen and deuterium.