✦ LIBER ✦
Power-dependence of strong-field ionization in an N-level system coupled to a continuum
✍ Scribed by Z. Deng
- Publisher
- Elsevier Science
- Year
- 1987
- Weight
- 698 KB
- Volume
- 145
- Category
- Article
- ISSN
- 0378-4363
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✦ Synopsis
An N-level system coupled to a continuum and interacting with lasers is considered. The effective decay rate of the bound states is studied as a function of laser'intensity under various conditions with respect to Rabi frequencies and atomic detunings. We show that when the Rabi frequencies are comparable with the atomic detunings the Fermi Golden Rule does not hold and the effective decay rate is not proportional to I N where I is the laser intensity and N is the minimum number of photons needed to ionize the atom.