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Area of Science:

  • Physics
  • Optics
  • Quantum Chaos

Background:

  • Asymmetric microcavities are crucial for broadband optical coupling and light-matter interactions.
  • Understanding light's dynamical evolution within these structures is key for advanced photonic applications.

Purpose of the Study:

  • To propose and demonstrate chaos-assisted photon transport engineered by regular periodic orbits in asymmetric microcavities.
  • To investigate how different initial light states evolve through distinct pathways (regular-chaotic or pure chaotic).

Main Methods:

  • Theoretical modeling of photon transport in the momentum-position phase space.
  • Experimental implementation using a nanofiber technique for precise control of light excitation position.
  • Analysis of coupling to high-Q whispering gallery modes based on excitation location.

Main Results:

  • Demonstrated that chaotic photon transport can be engineered via periodic orbits.
  • Observed distinct evolution pathways for light based on initial states.
  • Found strong dependence of high-Q mode coupling on excitation within 'islands' or 'chaotic sea', matching theoretical predictions.

Conclusions:

  • Chaos-assisted photon transport in asymmetric microcavities can be precisely engineered.
  • This engineered transport offers potential for novel light manipulation and broadband photonic devices.
  • The study provides insights into phase-space reconstruction and light dynamics.