Multi-step laser excitation of the highly excited states of zinc
Multi-step laser excitation of the highly excited states of zinc
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锌的高激发态的多步激光激发
DOI：
10.1016/j.optcom.2005.08.075
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
M. A. Baig
中科院分区：
文献类型：
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作者：
A. Nadeem;M. Nawaz;S. A. Bhatti;M. A. Baig
我们使用两步激光激发方案并结合热离子二极管离子检测器，报告了能量范围 74,625–75,740cm−1 中锌的高度激发态的实验数据。使用倍频染料激光器填充 32501.399cm−1 处的 4s4p3P1 间组合水平。 53672.28cm−1 处的 4s5s3S1 能级由第二步染料激光器的 ASE（放大自发发射）填充。已观测到里德伯级数 4snp3P2(12⩽n⩽60)、4snp1P1(16⩽n⩽30) 和宇称禁跃跃迁 4sns3S1(19⩽n⩽44)。与观测系列的激发能拟合的两个参数产生 4s5s3S1 能级的结合能为 22097.03±0.03cm−1，因此，锌的第一电离势被确定为 75769.31±0.05cm−1，这与早期的工作非常一致。
We report experimental data on the highly excited states of zinc in the energy range 74,625–75,740cm−1using two-step laser excitation scheme in conjunction with a thermionic diode ion detector. The 4s4p3P1inter-combination level at 32501.399cm−1was populated using a frequency doubled dye laser. The 4s5s3S1level at 53672.28cm−1gets populated from the ASE (amplified spontaneous emission) of the second step dye laser. The Rydberg series 4snp3P2(12⩽n⩽60), 4snp1P1(16⩽n⩽30) and parity forbidden transitions 4sns3S1(19⩽n⩽44) have been observed. A two parameter fit to excitation energies of the observed series yields the binding energy of the 4s5s3S1level as 22097.03±0.03cm−1and consequently, the first ionization potential of zinc is determined as 75769.31±0.05cm−1, that is in excellent agreement with the earlier work.