Multiphoton ionization cross sections of neon and argon

被引：30

作者：

McKenna, C ^{[1
]}

van der Hart, HW ^{[1
]}

机构：

[1] Queens Univ Belfast, Dept Appl Math & Theoret Phys, Belfast BT7 1NN, Antrim, North Ireland

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2004年 / 37卷 / 02期

关键词：

D O I：

10.1088/0953-4075/37/2/013

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the results of R-matrix Floquet calculations for generalized two- and three-photon ionization cross sections of neon and argon in the XUV region. Photoionization is strongly enhanced by singly- and doubly-excited resonances. We show that interference effects between different Rydberg states can strongly modify the photoionization cross sections. The observation of three- and four-photon resonances in the two- and three-photon spectra, respectively, demonstrates the influence from higher-order processes. The cross sections may be used to estimate the intensity attained by harmonic radiation in the XUV region.

引用

页码：457 / 470

页数：14

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