IONIZATION OF RYDBERG ATOMS BY HALF-CYCLE PULSES

被引：87

作者：

REINHOLD, CO ^{[1
]}

MELLES, M ^{[1
]}

SHAO, H ^{[1
]}

BURGDORFER, J ^{[1
]}

机构：

[1] OAK RIDGE NATL LAB,OAK RIDGE,TN 37831

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1993年 / 26卷 / 19期

关键词：

D O I：

10.1088/0953-4075/26/19/005

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the ionization of Rydberg atoms by half-cycle electromagnetic pulses as a function of the duration of the pulses covering a broad range of time intervals connecting the adiabatic and sudden regimes. We show that the threshold fields for ionization lie on a universal classical scaling invariant curve. We present quantum mechanical results which agree well with the universal curve. The n-2 threshold field scaling recently found experimentally is a linear approximation to the universal curve by the tangent in the region where the pulse duration is of the order of the orbital period of the atom. We predict the existence of an ultrashort pulse limit in which the threshold field scales as n-1. Effects due to non-hydrogenic core are shown to be negligible.

引用

页码：L659 / L664

页数：6

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