Zeeman quantum beats of helium Rydberg states excited by synchrotron radiation

Authors :: Yasumasa Hikosaka
Hiroshi Iwayama
Tatsuo Kaneyasu
Source :: J Synchrotron Radiat
Publication Year :: 2020
Publisher :: International Union of Crystallography (IUCr), 2020.
Abstract: Quantum beats in fluorescence decay from Zeeman-split magnetic sublevels have been measured for helium Rydberg states excited by synchrotron radiation. The Zeeman quantum beats observed in this prototypical case were fitted with an equation from a theoretical formulation. It is proposed that Zeeman quantum beat measurement can be a useful way to simply evaluate the polarization characteristics of extreme ultraviolet light.