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Stable solid-state source of single photons

Kurtsiefer1, Mayer, Zarda

  • 1Sektion Physik, Ludwig-Maximilians-Universitat, D-80799 Munchen, Germany.

Physical Review Letters
|September 16, 2000
PubMed
Summary
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Single nitrogen-vacancy centers in diamond emit only one photon at a time, demonstrating strong photon antibunching. These stable, room-temperature quantum emitters are easily studied in experiments.

Area of Science:

  • Quantum optics
  • Solid-state physics
  • Materials science

Background:

  • Single-photon sources are crucial for quantum technologies.
  • Nitrogen-vacancy (NV) centers in diamond are promising candidates for quantum applications.
  • Understanding their emission properties is essential for device development.

Purpose of the Study:

  • To investigate the photon emission characteristics of single nitrogen-vacancy centers in diamond.
  • To confirm photon antibunching behavior in these quantum emitters.

Main Methods:

  • Optical spectroscopy of single nitrogen-vacancy centers.
  • Measurement of the second-order photon correlation function, g((2))(τ).

Main Results:

Related Experiment Videos

  • Observed strong photon antibunching from single NV centers.
  • Measured g((2))(0) = 0, indicating emission of only one photon at a time.
  • Demonstrated stability of NV centers at room temperature and resistance to photobleaching.

    • Conclusions:

    • Single nitrogen-vacancy centers in diamond function as efficient single-photon sources.
    • Their robustness and ease of experimental manipulation make them suitable for various quantum applications.
    • The observed photon antibunching confirms their quantum nature.