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Angular correlation in strong-field double ionization under circular polarization.

Xu Wang1, Justin Tian1, J H Eberly1

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Summary
This summary is machine-generated.

Sequential electron detachment by circularly polarized laser pulses creates correlated emission directions. Laser intensity controls the angle between electron emissions, from parallel to antiparallel.

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Area of Science:

  • Quantum mechanics
  • Atomic and molecular physics
  • Laser-matter interactions

Background:

  • Electrons can be sequentially detached from atoms or molecules using intense laser fields.
  • The polarization of laser light influences the dynamics of electron emission.

Purpose of the Study:

  • To investigate the directional correlation between sequentially detached electrons.
  • To explore the control of this correlation using laser intensity.

Main Methods:

  • A classical ensemble approach was employed to model the electron detachment process.
  • Simulations considered short, circularly polarized laser pulses.

Main Results:

  • A correlation in the emission directions of sequentially detached electrons was predicted.
  • The angle between electron emissions can be continuously tuned by adjusting laser intensity.
  • Angles ranging from parallel (0°) to perpendicular (90°) and antiparallel (180°) are achievable.

Conclusions:

  • Circularly polarized laser pulses can induce directional correlations in sequential electron detachment.
  • Laser intensity offers a controllable parameter to manipulate electron emission angles.
  • The resulting ion momentum distributions are influenced by these controlled electron emission dynamics.