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Parametric down conversion of X-ray photons.

B Adams1, P Fernandez, W K Lee

  • 1Hamburger Synchrotronstrahlungslabor HASYLAB am Deutschen Elektronen-Synchrotron DESY, Notkestrasse 85, 22603 Hamburg, Germany. adams@x4u2.desy.de

Journal of Synchrotron Radiation
|April 13, 2006
PubMed
Summary
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Researchers detected X-ray photon parametric down conversion in diamond crystals. This study utilized phase-matching and time-correlation spectroscopy for detection, confirming the down conversion process.

Area of Science:

  • Quantum optics
  • Solid-state physics
  • Photonics

Background:

  • Parametric down conversion (PDC) is a nonlinear optical process.
  • X-ray photon PDC in solids presents unique experimental challenges.
  • Previous X-ray phase-matching schemes provide a foundation for current research.

Purpose of the Study:

  • To experimentally demonstrate and detect X-ray photon parametric down conversion in diamond crystals.
  • To validate the application of established phase-matching techniques in the X-ray regime.
  • To characterize the conversion process using advanced detection methods.

Main Methods:

  • Utilized a phase-matching scheme adapted for X-ray frequencies.
  • Employed time-correlation spectroscopy to analyze photon events.

Related Experiment Videos

  • Used silicon drift-chamber detectors for energy discrimination and event detection.

    • Main Results:

    • Successfully detected parametric down conversion of X-ray photons within diamond crystals.
    • Time-correlation spectra provided a direct measure of the conversion rate versus accidental coincidences.
    • The results confirm the feasibility of X-ray PDC in crystalline materials.

    Conclusions:

    • X-ray photon parametric down conversion in diamond is experimentally verified.
    • The employed methodology is effective for detecting and characterizing such events.
    • Further research can explore mechanisms for false event detection and cross-checking.