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Circular photonic crystal resonators.

Jacob Scheuer1, Amnon Yariv

  • 1Department of Applied Physics, 128-95 California Institute of Technology, Pasadena, California 91125, USA.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|November 5, 2004
PubMed
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Researchers developed compact circular resonators using radial photonic crystal reflectors. These novel resonators achieve a large free spectral range and high Q-factor, crucial for optical applications.

Area of Science:

  • Photonics
  • Optical Engineering
  • Materials Science

Background:

  • Circular resonators are key components in optical systems.
  • Existing designs face limitations in size, free spectral range, and Q-factor.
  • Photonic crystals offer unique light confinement properties.

Purpose of the Study:

  • To introduce and characterize a new class of circular resonators.
  • To investigate resonators based on radial photonic crystal reflectors.
  • To optimize resonator performance for enhanced optical applications.

Main Methods:

  • Analytical modeling of resonator behavior.
  • Numerical simulations using finite-difference time-domain (FDTD) methods.
  • Systematic study of reflector architecture and dimensional effects.

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Main Results:

  • Demonstration of compact resonators with large free spectral range.
  • Achieved high Q-factor values through Bragg confinement.
  • Validated analytical models with FDTD simulation results.
  • Detailed analysis of resonator characteristics versus reflector design.

Conclusions:

  • Radial photonic crystal reflectors enable highly efficient, compact circular resonators.
  • The developed resonators offer a promising platform for advanced optical devices.
  • The study provides a framework for designing and optimizing such resonators.