Coherent control in four-photon excitation schemes

被引：39

作者：

Karapanagioti, NE ^{[1
]}

Xenakis, D ^{[1
]}

Charalambidis, D ^{[1
]}

Fotakis, C ^{[1
]}

机构：

[1] UNIV CRETE, DEPT PHYS, IRAKLION, GREECE

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1996年 / 29卷 / 16期

关键词：

D O I：

10.1088/0953-4075/29/16/009

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the observation of coherent control of the ionization rate in four-photon resonant, five-photon ionization schemes in Kr and Xe. The intermediate resonance is excited via different interfering channels involving four-photon absorption of the fundamental laser frequency (4 omega(1) + omega(1) ionization) as well as one third harmonic and one fundamental frequency photon absorption (omega(3) + omega(1) excitation), a particular aspect of the scheme being that interference occurs at a virtual level. By varying the relative phase of the two electromagnetic fields, a large modulation depth has been observed which is due to the chosen non-linear excitation scheme. In the Xe excitation experiment the interference between the different channels could be additionally probed through the modulation of the third-harmonic signal.

引用

页码：3599 / 3609

页数：11

共 26 条

[1] LASER CONTROL OF PREDISSOCIATION BY (2+4)-PHOTON INTERFERENCE [J].