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Split-pulse spectrometer for absolute XUV frequency measurements.

I Liontos1, C Corsi, S Cavalieri

  • 1European Laboratory for non linear Spectroscopy (LENS), 50019 Sesto Fiorentino, Florence, Italy. liontos@lens.unifi.it

Optics Letters
|June 3, 2011
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Summary
This summary is machine-generated.

Accurate frequency measurements in the extreme ultraviolet (XUV) range are now possible using a split-pulse spectrometer. This study successfully measured the absolute frequency of a single XUV-photon transition in atomic argon.

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Area of Science:

  • Atomic Physics
  • Quantum Optics
  • Spectroscopy

Background:

  • Accurate frequency measurements are crucial in spectroscopy.
  • The extreme ultraviolet (XUV) spectral domain presents unique challenges for precise measurements.

Purpose of the Study:

  • To demonstrate a split-pulse spectrometer for accurate frequency measurements in the XUV domain.
  • To measure the absolute frequency of a specific transition in atomic argon.

Main Methods:

  • Utilizing a split-pulse spectrometer with time-delayed femtosecond pulses.
  • Exciting atomic argon using the ninth harmonic of an amplified Ti:sapphire laser.
  • Performing absolute frequency measurements of a single-XUV-photon transition.

Main Results:

  • The split-pulse spectrometer provided accurate frequency measurements in the XUV spectral domain.
  • The absolute frequency of a single-XUV-photon transition to a bound state of atomic argon was successfully determined.

Conclusions:

  • The split-pulse spectrometer is a viable technique for high-precision XUV frequency metrology.
  • This method opens new possibilities for studying atomic and molecular properties in the XUV range.