Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Journal of Experimental and Theoretical Physics

Stabilization of an atom in a strong laser field

Alexander Ya. Kazakov

Published Apr 1, 1999• 3 citations
Publisher

Abstract

A quasiresonant laser field initiates the decay of an initially occupied atomic level into the continuum. If the amplitude of the external field is sufficiently high, other atomic levels, not meeting the condition for exact resonance, begin to participate in the atomic dynamics. This phenomenon leads to the stabilization of the atom.
DOI
10.1134/1.558844

Related papers

Stabilization of a Rydberg atom and competition between the Λ and V transition channels

Н. П. Полуэктов, Mikhail Vladimirovich Fedorov

The photoionization and stabilization of a Rydberg atom in a strong laser field are investigated theoretically. The role of Raman-type transitions between neighboring Rydberg levels via the continuum (Λ transitions) and via lower-energy resonant Rydberg levels ( V transitions) is analyzed. The conditions under which this phenomenon can be observed experimentally are determined. The characteristics of stabilization due to V -type transitions are described.

Journal of Experimental and Theoretical Physics•Sep 1, 1998•2 citations

Phase control of the degree of ionization of Rydberg atoms by a strong laser field

Н. П. Полуэктов, Mikhail Vladimirovich Fedorov

It is shown that the rate and degree of ionization of an atom can be controlled by preparing a specific superposition of Rydberg states. This effect is due to the Raman interaction of Rydberg levels via resonant lower-lying levels of the atom. Depending on the initial population of an atom interacting with a strong laser field, the atom either ionizes completely or exhibits an extremely high degree of stability (in this case the probability of the atom remaining in a bound state when the laser pulse is switched off is close to 1). It is shown that states which are stable against ionization decay or, conversely, decay rapidly into the continuum can be prepared using double laser pulses with a controllable time delay.

Journal of Experimental and Theoretical Physics•May 1, 2000•10 citations

Interference Stabilization of Atoms in a Strong Laser Field

Mikhail Vladimirovich Fedorov

The key subject of these lectures is Interference Stabilization (IS) of atoms in a strong laser field. Physics of the phenomenon, its various manifestations, as well as many related subtopics will be discussed. Generalizations to the case of two-colour interference stabilization will be briefly described. As it will be shown, owing to the achievable in this case very high degree of stabilization, the phenomenon appears to be very promising for making progress in such an important field as propagation of laser pulses in a gas medium. Since the first work on IS (Fedorov and Movsesian, 1988), there have been a lot of publications on this subject. I am not going to mention here all the relevant papers.

CRC Press eBooks•Mar 27, 2009•0 citations

Atomic stabilisation in a laser field

Nikolai B. Delone, В. П. Крайнов

Physical phenomena arising in the photoionisation of an atom in a laser radiation field are considered. Theoretical studies conducted by means of various methods are reviewed, predicting the existence of the atomic stabilisation effect — the reduction in photoionisation probability with increasing field strength in a fixed radiation field. Various experiments designed to observe the effect are discussed.

Physics-Uspekhi•Nov 30, 1995•34 citations

Nonlinear effect in processes of the interaction of atoms with a resonant laser field

R. Kh. Gainutdinov, Aigul A. Mutygullina

We show that for some intensities of a driving laser field not only the laser modes but also the vacuum ones are involved into the strong atom-laser interaction and this has a significant effect on processes of resonance fluorescence.

Journal of Physics Conference Series•Dec 19, 2013•5 citations

Multiphoton absorption above ionization threshold by atoms in strong laser fields

Zhifang Deng, Joseph H. Eberly

We present an atomic model to study above-threshold ionization (ATI). We show that when the laser field is sufficiently intense the usual perturbation theory is not valid. We solve the model dynamics exactly, and several interesting quantities, including the initial-state decay rate and photoelectron spectrum, are calculated. These quantities are related to recent ATI experiments, and qualitatively they agree with these experiments. We specify the strong-field condition for continuum–continuum transitions and explore its physical meaning. Finally some comments on perturbation theory are made.

Journal of the Optical Society of America B•Mar 1, 1985•143 citations
It is shown that the rate and degree of ionization of an atom can be controlled by preparing a specific superposition of Rydberg states. This effect is due to the Raman interaction of Rydberg levels via resonant lower-lying levels of the atom. Depending on the initial population of an atom interacting with a strong laser field, the atom either ionizes completely or exhibits an extremely high degree of stability (in this case the probability of the atom remaining in a bound state when the laser pulse is switched off is close to 1). It is shown that states which are stable against ionization decay or, conversely, decay rapidly into the continuum can be prepared using double laser pulses with a controllable time delay.
The key subject of these lectures is Interference Stabilization (IS) of atoms in a strong laser field. Physics of the phenomenon, its various manifestations, as well as many related subtopics will be discussed. Generalizations to the case of two-colour interference stabilization will be briefly described. As it will be shown, owing to the achievable in this case very high degree of stabilization, the phenomenon appears to be very promising for making progress in such an important field as propagation of laser pulses in a gas medium. Since the first work on IS (Fedorov and Movsesian, 1988), there have been a lot of publications on this subject. I am not going to mention here all the relevant papers.
We present an atomic model to study above-threshold ionization (ATI). We show that when the laser field is sufficiently intense the usual perturbation theory is not valid. We solve the model dynamics exactly, and several interesting quantities, including the initial-state decay rate and photoelectron spectrum, are calculated. These quantities are related to recent ATI experiments, and qualitatively they agree with these experiments. We specify the strong-field condition for continuum–continuum transitions and explore its physical meaning. Finally some comments on perturbation theory are made.