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Related Experiment Videos

Single-photon tunneling via localized surface plasmons.

I I Smolyaninov1, A V Zayats, A Gungor

  • 1Electrical and Computer Engineering Department, University of Maryland, College Park, MD 20742, USA.

Physical Review Letters
|May 15, 2002
PubMed
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Researchers observed single-photon tunneling, analogous to electron tunneling, through tiny holes. Optical nonlinearity caused transmission saturation, explained by "photon blockade," with potential quantum technology applications.

Area of Science:

  • Quantum optics
  • Condensed matter physics

Background:

  • Single-electron tunneling is a well-established quantum phenomenon.
  • Analogous quantum effects in photonics are of significant interest.

Purpose of the Study:

  • To experimentally demonstrate single-photon tunneling.
  • To investigate optical nonlinearity in subwavelength structures.
  • To explore potential quantum information applications.

Main Methods:

  • Fabrication of gold films with subwavelength pinholes.
  • Coating with polydiacetylene to induce optical nonlinearity.
  • Measurement of light transmission at low photon flux.

Main Results:

  • Evidence for single-photon tunneling was obtained.

Related Experiment Videos

  • Transmission saturation observed at low light intensity due to optical nonlinearity.
  • The phenomenon was theoretically explained as
  • photon blockade
  • .

    • Conclusions:

    • Single-photon tunneling is experimentally verified.
    • Photon blockade is a viable mechanism for controlling single photons.
    • Potential applications in quantum communication and information processing exist.