LASER-INDUCED GAS-BREAKDOWN - MULTIPOLE INTERFERENCE IN 2-PHOTON IONIZATION OF METASTABLE HELIUM

被引：9

作者：

MATHUR, KC

机构：

[1] Physics Department, University of Roorkee

来源：

PHYSICAL REVIEW A | 1978年 / 18卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.18.2170

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The two-photon ionization of the He atom in the 2S1 state is studied in the electric dipole plus quadrupole approximation. A quadrupole resonance peak in the generalized cross section is obtained at 5043.5 A. It is shown that for incident photons having wavelengths between 5042 and 5045 A, the quadrupole term gives a significant contribution to the total generalized cross section. © 1978 The American Physical Society.

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页码：2170 / 2172

页数：3

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