### Abstract

Singly charged negative atomic ions exist in the gas phase and are of fundamental importance in atomic and molecular physics. However, theoretical calculations and experimental results clearly exclude the existence of any stable doubly-negatively-charged atomic ion in the gas phase, only one electron can be added to a free atom in the gas phase. In this report, using the high-frequency Floquet theory, we predict that in a linear superintense laser field one can stabilize multiply charged negative atomic ions in the gas phase. We present self-consistent field calculations for the linear superintense laser fields needed to bind extra one and two electrons to form He-, He2-, and Li2-, with detachment energies dependent on the laser intensity and maximal values of 1.2, 0.12, and 0.13 eV, respectively. The fields and frequencies needed for binding extra electrons are within experimental reach. This method of stabilization is general and can be used to predict stability of larger multiply charged negative atomic ions.

Original language | English |
---|---|

Article number | 201108 |

Journal | Journal of Chemical Physics |

Volume | 124 |

Issue number | 20 |

DOIs | |

Publication status | Published - 28 May 2006 |

Externally published | Yes |

### Fingerprint

### ASJC Scopus subject areas

- Atomic and Molecular Physics, and Optics

### Cite this

*Journal of Chemical Physics*,

*124*(20), [201108]. https://doi.org/10.1063/1.2207619

**New stable multiply charged negative atomic ions in linearly polarized superintense laser fields.** / Wei, Qi; Kais, Sabre; Moiseyev, Nimrod.

Research output: Contribution to journal › Article

*Journal of Chemical Physics*, vol. 124, no. 20, 201108. https://doi.org/10.1063/1.2207619

}

TY - JOUR

T1 - New stable multiply charged negative atomic ions in linearly polarized superintense laser fields

AU - Wei, Qi

AU - Kais, Sabre

AU - Moiseyev, Nimrod

PY - 2006/5/28

Y1 - 2006/5/28

N2 - Singly charged negative atomic ions exist in the gas phase and are of fundamental importance in atomic and molecular physics. However, theoretical calculations and experimental results clearly exclude the existence of any stable doubly-negatively-charged atomic ion in the gas phase, only one electron can be added to a free atom in the gas phase. In this report, using the high-frequency Floquet theory, we predict that in a linear superintense laser field one can stabilize multiply charged negative atomic ions in the gas phase. We present self-consistent field calculations for the linear superintense laser fields needed to bind extra one and two electrons to form He-, He2-, and Li2-, with detachment energies dependent on the laser intensity and maximal values of 1.2, 0.12, and 0.13 eV, respectively. The fields and frequencies needed for binding extra electrons are within experimental reach. This method of stabilization is general and can be used to predict stability of larger multiply charged negative atomic ions.

AB - Singly charged negative atomic ions exist in the gas phase and are of fundamental importance in atomic and molecular physics. However, theoretical calculations and experimental results clearly exclude the existence of any stable doubly-negatively-charged atomic ion in the gas phase, only one electron can be added to a free atom in the gas phase. In this report, using the high-frequency Floquet theory, we predict that in a linear superintense laser field one can stabilize multiply charged negative atomic ions in the gas phase. We present self-consistent field calculations for the linear superintense laser fields needed to bind extra one and two electrons to form He-, He2-, and Li2-, with detachment energies dependent on the laser intensity and maximal values of 1.2, 0.12, and 0.13 eV, respectively. The fields and frequencies needed for binding extra electrons are within experimental reach. This method of stabilization is general and can be used to predict stability of larger multiply charged negative atomic ions.

UR - http://www.scopus.com/inward/record.url?scp=34547648321&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547648321&partnerID=8YFLogxK

U2 - 10.1063/1.2207619

DO - 10.1063/1.2207619

M3 - Article

VL - 124

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 20

M1 - 201108

ER -