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Related Experiment Videos

Resonant tunneling in frustrated total internal reflection.

Stefano Longhi1

  • 1Dipartimento di Fisica and Istituto di Fotonica e Nanotecnologie del CNR, Politecnico di Milano, Italy. longhi@fisi.polimi.it

Optics Letters
|October 29, 2005
PubMed
Summary

Frustrated total internal reflection (FTIR) shows anomalous light transmission and resonant tunneling at curved interfaces. This phenomenon optically mimics quantum tunneling barrier transparency, particularly at grazing incidence.

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Area of Science:

  • Optics and Photonics
  • Quantum Mechanics
  • Condensed Matter Physics

Background:

  • Total internal reflection (TIR) typically prevents light transmission.
  • Frustrated total internal reflection (FTIR) occurs when the gap between reflecting surfaces is small.
  • Anomalous light transmission and resonant tunneling are phenomena observed in specific optical setups.

Purpose of the Study:

  • To theoretically investigate anomalous light transmission and resonant tunneling.
  • To explore these phenomena at periodically curved interfaces.
  • To demonstrate an optical analog of quantum tunneling.

Main Methods:

  • Theoretical analysis of light transmission.
  • Modeling frustrated total internal reflection (FTIR) at curved interfaces.

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  • Applying principles of wave optics and quantum mechanics.

    • Main Results:

    • Periodic curvature of interfaces leads to anomalous light transmission.
    • Resonant tunneling is predicted to occur under FTIR conditions.
    • FTIR resonant tunneling provides an optical realization of field-induced barrier transparency.

    Conclusions:

    • Periodically curved interfaces enable novel light transmission phenomena.
    • Frustrated total internal reflection offers a pathway to optical quantum tunneling analogs.
    • The findings bridge optics and quantum mechanics, with potential applications in optical devices.