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Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
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Zeptosecond precision pulse shaping.

Jens Köhler1, Matthias Wollenhaupt, Tim Bayer

  • 1Universität Kassel, Institut für Physik und Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), Kassel, Germany.

Optics Express
|July 1, 2011
PubMed
Summary

This study achieves 300 zeptosecond precision in ultrashort laser pulse pair generation using pulse shaping. This breakthrough enables precise control over ultrafast electron dynamics in quantum experiments.

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Area of Science:

  • Quantum optics
  • Ultrafast science
  • Laser physics

Background:

  • Precise control of ultrashort laser pulses is crucial for advanced experiments.
  • Traditional interferometers face limitations in temporal precision.
  • Pulse shaping offers a novel approach to generating high-precision pulse pairs.

Purpose of the Study:

  • To investigate and demonstrate high temporal precision in generating ultrashort laser pulse pairs.
  • To develop a pulse shaping technique mimicking a stable interferometer.
  • To apply these precise pulse pairs in ultrafast quantum control experiments.

Main Methods:

  • Combining a femtosecond polarization pulse shaper with a polarizer.
  • Employing two linear spectral phase masks to simulate a common-path interferometer.
  • Conducting all-optical experiments to measure interference signals from delayed pulses.

Main Results:

  • Achieved a 2σ-precision of 300 zeptoseconds (zs) in pulse-to-pulse delay.
  • Demonstrated a standard deviation of the mean of 11 zs.
  • The achieved precision is equivalent to a 0.45 Å variation in conventional interferometer arm length.

Conclusions:

  • Femtosecond pulse shaping enables unprecedented temporal precision in laser pulse generation.
  • This technique facilitates precise control over ultrafast electron dynamics.
  • Demonstrated coherent control via photon locking on an attosecond timescale.