Lifetimes of Rydberg states of Eu atoms<xref ref-type="fn" rid="cpb141497fn1">*</xref>

Lifetimes of Rydberg states of Eu atoms*

Jing Hua^a),^b), Ye Shi-Wei^a),^b), Dai Chang-Jian^a),^b)

Fig.#cod#x0A0;2. The two excitation schemes for measuring the lifetime of Eu 4f 7 6s n p 8 P J or 10 P J Rydberg states, where J #cod#x003D; 52, 72, or 92 and 72, 92, or 112, respectively. a Scheme I, b scheme II.