Resonance-enhanced photon excitation spectroscopy of the even-parity autoionizing Rydberg states of Kr

• 来源期刊: 中国科学B辑（英文版）
• 年，卷（期）: 2009,（2）
• 页码范围: 161-168
• 页数: 8页
• 语种: 英文
• DOI: 10.1007/s11426-009-0020-4

摘要

Kr atoms were produced in their metastable states 4p55s [3/2]2 and 4p55s' [1/2]0 in a pulsed DC discharge in a beam, and subsequently excited to the even-parity autoionizing Rydberg states 4p5np' [3/2]1,2, [1/2]1 and 4p5nf' [5/2]3 using single photon excitation. The excitation spectra of the even-parity autoionizing resonance series from the metastable Kr were obtained by recording the autoionized Kr+ ions with time-of-flight ion detection in the photon energy range of 29000-40000 cm-1. A wealth of autoionizing resonances were newly observed, from which more precise and more systematic spec-troscopic data of the level energy and quantum defects were derived.