Published November 1997
| Version v1
Journal article
Controlling the Branching Ratio of Photoionization Products under Two-Color Excitation: Competition between ac Stark Splitting and Two-Path Interference
- 1. The Institute of Physical and Chemical Research (RIKEN), 2-1 Hirosawa, Wako, Saitama, 351-01 (Japan)
- 2. Max-Planck-Institut fuer Quantenoptik, 85748 Garching (Germany)
- 3. F.O.R.TH., Institute of Electronic Structure and Laser and Department of Physics, University of Crete, P.O. Box 1527, Heraklion 711 10, Crete (Greece)
Description
We investigate the variation of the photoionization yields into different ionic channels by means of the one-photon-near-resonant two-photon ionization scheme under two-color excitation. We present a general formulation and the results of specific calculations pertaining to the Ca atom with realistic parameters. A significant change of the ionization into Ca+ 4s , 3d , and 4p channels has been observed as a detuning is varied, which agrees qualitatively well with the observation by Wang, Chen, and Elliott [Phys.Rev.Lett.77, 2416 (1996)] for the Ba atom. The importance of the laser intensity effects is also addressed. copyright 1997 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 79
- Journal Issue
- 18
- Journal Page Range
- p. 3367-3370.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 29010931
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- BRANCHING RATIO; CALCIUM; DENSITY MATRIX; EXCITATION; INTERFERENCE; IONIZATION; NUMERICAL ANALYSIS; PHOTOIONIZATION; STARK EFFECT; TIME DEPENDENCE
- Descriptors DEC
- ALKALINE EARTH METALS; ELEMENTS; ENERGY-LEVEL TRANSITIONS; MATHEMATICS; MATRICES; METALS