1ST OBSERVATION OF A PHOTON-INDUCED TRIPLY EXCITED-STATE IN ATOMIC LITHIUM

被引：119

作者：

KIERNAN, LM ^{[1
]}

KENNEDY, ET ^{[1
]}

MOSNIER, JP ^{[1
]}

COSTELLO, JT ^{[1
]}

SONNTAG, BF ^{[1
]}

机构：

[1] UNIV HAMBURG,INST EXPTL PHYS 2,W-2000 HAMBURG 13,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.72.2359

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a dual laser plasma technique we have measured for the first time the photoabsorption spectrum of atomic lithium at energies corresponding to the simultaneous excitation of both is electrons. We have observed the main triply excited 1s(2)2s(2S) --> 2s(2)2p(2P) transition with Fano parameters E0 = 142.32 +/- 0.05 ev, GAMMA = 0.20 +/- 0.04 eV, and q = -2.2 +/- 0.6. Our experiment represents the first step in photoionization studies of this fundamental atomic system in which the motion of the three electrons in the field of the nucleus is so highly correlated.

引用

页码：2359 / 2362

页数：4

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