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Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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Robust photon locking.

T Bayer1, M Wollenhaupt, C Sarpe-Tudoran

  • 1Universität Kassel, Institut für Physik und CINSaT, Heinrich-Plett-Str. 40, D-34132 Kassel, Germany.

Physical Review Letters
|March 5, 2009
PubMed
Summary
This summary is machine-generated.

We developed a robust strong-field coherent control method combining photon locking and rapid adiabatic passage using shaped laser pulses. This technique efficiently switches between atomic states, offering precise control over quantum systems.

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Area of Science:

  • Quantum control
  • Strong-field physics
  • Atomic spectroscopy

Background:

  • Photon locking (PL) and rapid adiabatic passage (RAP) are established coherent control techniques.
  • Previous implementations relied on pulse sequences or chirped pulses, limiting flexibility.
  • Strong-field interactions require advanced control methods for precise manipulation of quantum states.

Purpose of the Study:

  • To demonstrate a novel strong-field coherent control mechanism.
  • To combine the benefits of photon locking and rapid adiabatic passage.
  • To investigate the robustness and efficiency of this new control scenario.

Main Methods:

  • Utilized shaped femtosecond laser pulses generated via spectral phase modulation with a generalized phase discontinuity.
  • Employed adiabatic preparation to achieve a state of maximum coherence.
  • Investigated the control mechanism using photoelectron spectroscopy on potassium atoms.

Main Results:

  • Successfully combined photon locking and rapid adiabatic passage using shaped pulses.
  • Demonstrated a high degree of robustness in the coherent control mechanism.
  • Showcased efficient switching among different target atomic states via phase control.

Conclusions:

  • The novel shaped pulse approach offers a robust and efficient method for strong-field coherent control.
  • This technique advances the ability to precisely manipulate quantum states in atoms.
  • The findings have implications for quantum information processing and laser-matter interactions.