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Related Concept Videos

Standing Waves in a Cavity01:28

Standing Waves in a Cavity

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A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
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Reflection of Waves01:07

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When a wave travels from one medium to another, it gets reflected at the boundary of the second medium. A common example of this is when a person yells at a distance from a cliff and hears the echo of their voice. The sound waves (longitudinal waves) traveling in the air are reflected from the bounding cliff. Similarly, flipping one end of a string whose other end is tied to a wall causes a pulse (transverse wave) to travel through the string, which gets reflected upon reaching the wall. In...
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Propagation of Waves01:07

Propagation of Waves

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When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
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Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
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Ray-Wave Correspondence in Microstar Cavities.

Julius Kullig1, Jan Wiersig1

  • 1Institut für Physik, Otto-von-Guericke-Universität Magdeburg, Postfach 4120, D-39016 Magdeburg, Germany.

Entropy (Basel, Switzerland)
|November 11, 2022
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Summary
This summary is machine-generated.

Researchers explored light confinement in novel microstar cavities, revealing an unexpected difference in clockwise versus counterclockwise light propagation due to nonlinear resonance chains.

Keywords:
microcavitiesquantum chaosray–wave correspondence

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Area of Science:

  • Physics
  • Optics
  • Quantum mechanics

Background:

  • Introduced a novel concept for light confinement in microcavities using successive perfect transmissions at Brewster's angle.
  • Designed open billiards with star-shaped microcavities allowing ray orbits to exit and re-enter.

Purpose of the Study:

  • Investigate the ray-wave correspondence within these microstar cavities.
  • Analyze the behavior of light propagation in open, star-shaped microcavity systems.

Main Methods:

  • Utilized ray tracing and wave propagation analysis.
  • Examined light trajectories and phase space dynamics within the microstar cavities.

Main Results:

  • Revealed an unintuitive asymmetry between clockwise and counterclockwise light propagation.
  • Identified nonlinear resonance chains in phase space as the underlying cause of this asymmetry.

Conclusions:

  • The study demonstrates a unique ray-wave correspondence in microstar cavities.
  • Nonlinear dynamics in phase space significantly influence light propagation characteristics in open microcavity systems.