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Localized lasing modes of triangular organic microlasers.

C Lafargue1, M Lebental1, A Grigis2

  • 1Laboratoire de Photonique Quantique et Moléculaire, CNRS UMR 8537, Institut d'Alembert FR 3242, École Normale Supérieure de Cachan, 61 avenue du Président Wilson, F-94235 Cachan, France.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|December 11, 2014
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Summary
This summary is machine-generated.

We studied organic microlasers shaped like triangles to understand light behavior. Symmetric triangles showed predictable light patterns linked to simple orbits, unlike complex patterns in asymmetric shapes.

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Area of Science:

  • Optics and Photonics
  • Quantum Chaos
  • Materials Science

Background:

  • Investigating ray-wave correspondence is crucial for understanding light behavior in microcavities.
  • Triangular billiards, as simple polygonal systems, offer a unique platform to study fundamental physics.
  • The properties of periodic orbits in triangles remain an area of active research.

Purpose of the Study:

  • To experimentally explore the relationship between ray dynamics and wave phenomena in organic microlasers.
  • To analyze how geometric shape, specifically triangular symmetry, influences lasing characteristics.
  • To determine the role of periodic orbits in determining the behavior of microlasers.

Main Methods:

  • Fabrication and experimental investigation of organic microlasers with various triangular geometries.
  • Analysis of lasing spectra and far-field emission patterns.
  • Comparison of experimental results with theoretical predictions based on periodic orbit theory.

Main Results:

  • Symmetric triangular microlasers exhibited lasing states localized on simple periodic orbits.
  • Lasing characteristics (spectra, far-field) of symmetric microlasers were well-explained by periodic orbit properties.
  • Asymmetric triangular microlasers, lacking simple periodic orbits, displayed complex lasing properties not explained by periodic orbits.

Conclusions:

  • The study confirms the ray-wave correspondence in symmetric triangular microlasers.
  • Periodic orbits play a significant role in dictating the behavior of microlasers with simple geometries.
  • Deviations from simple periodic orbits lead to complex and less predictable lasing phenomena.