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Related Experiment Videos

Subfemtosecond processes in strong laser fields.

P B Corkum1, M Y Ivanov, J S Wright

  • 1Steacie Institute for Molecular Sciences, National Research Council of Canada, M-23A Montreal Rd, Ottawa, Ontario K1A 0R6, Canada.

Annual Review of Physical Chemistry
|January 1, 1997
PubMed
Summary
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Strong field interactions reveal electronic dynamics on subfemtosecond timescales using time-dependent Born-Oppenheimer surfaces. This approach advances femtochemistry through new methods for studying atomic and molecular ionization and dissociation.

Area of Science:

  • Atomic and Molecular Physics
  • Quantum Chemistry
  • Ultrafast Spectroscopy

Background:

  • Understanding strong field atomic and molecular interactions is crucial for fields like femtochemistry.
  • Electronic dynamics within a laser cycle govern these interactions.
  • Existing methods may lack the temporal resolution to capture ultrafast processes.

Purpose of the Study:

  • To introduce a subfemtosecond timescale perspective into strong-field dynamics.
  • To demonstrate an all-optical method for determining time-dependent molecular structure.
  • To apply the concept of time-dependent Born-Oppenheimer surfaces to molecular reactions.

Main Methods:

  • Utilizing a quasistatic perspective to analyze electronic dynamics.
  • Employing time-dependent Born-Oppenheimer surfaces.

Related Experiment Videos

  • Demonstrating an all-optical Coulomb explosion technique.
  • Investigating molecular dissociation and exchange reactions in infrared fields.

    • Main Results:

    • Established a subfemtosecond timescale for strong-field dynamics.
    • Successfully demonstrated an all-optical Coulomb explosion method for real-time molecular analysis.
    • Provided theoretical and experimental insights into atomic and molecular ionization and dissociation.
    • Showcased the utility of time-dependent Born-Oppenheimer surfaces in studying molecular reactions.

    Conclusions:

    • The quasistatic perspective and time-dependent Born-Oppenheimer surfaces offer a powerful framework for understanding ultrafast electronic dynamics.
    • The developed all-optical Coulomb explosion method enables unprecedented real-time probing of molecular structure and properties.
    • This research significantly advances the field of femtochemistry and related areas.