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Related Experiment Videos

Chaotic microlasers based on dynamical localization.

Viktor A Podolskiy1, Evgenii Narimanov, Wei Fang

  • 1Electrical Engineering Department, Princeton University, Princeton, NJ 08544, USA. vpodolsk@physics.orst.edu

Proceedings of the National Academy of Sciences of the United States of America
|July 14, 2004
PubMed
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We observed lasing in microdisk resonators with rough boundaries, demonstrating robust performance by utilizing Anderson localization for stable laser operation. This novel approach enhances laser and sensor technology in various materials.

Area of Science:

  • Optics and Photonics
  • Condensed Matter Physics
  • Materials Science

Background:

  • Microlasers typically rely on stable ray trajectories for lasing.
  • Boundary roughness in resonators often leads to performance degradation due to ray chaos.
  • Anderson localization is a phenomenon typically observed in disordered systems.

Purpose of the Study:

  • To directly observe lasing action from a dynamically localized mode in a microdisk resonator.
  • To investigate the robustness of microlaser performance against boundary roughness and ray chaos.
  • To demonstrate the applicability of Anderson localization in angular momentum for resonator design.

Main Methods:

  • Fabrication of GaAs-InAs microdisk resonators with intentionally rough boundaries.

Related Experiment Videos

  • Direct observation and characterization of lasing action.
  • Analysis of mode localization and resonator performance under varying roughness conditions.

    • Main Results:

    • Direct observation of lasing action from a dynamically localized mode.
    • Demonstration of robust microlaser performance despite boundary roughness and ray chaos.
    • Successful application of Anderson localization in angular momentum to enhance resonator stability.

    Conclusions:

    • Dynamically localized modes offer a pathway to robust microlaser performance.
    • Anderson localization in angular momentum can overcome challenges posed by boundary roughness in resonators.
    • The demonstrated resonator design has broad applicability for lasers and sensors in diverse materials.