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Related Experiment Video

Updated: May 6, 2026

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
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Multi-colour nanowire photonic crystal laser pixels.

Jeremy B Wright1, Sheng Liu, George T Wang

  • 11] Sandia National Laboratories, Albuquerque, New Mexico 87185, USA [2] Center for High Technology Materials, The University of New Mexico, Albuquerque, New Mexico 87106, USA.

Scientific Reports
|October 19, 2013
PubMed
Summary

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Researchers developed a new micro-laser technology using III-nitride nanowires for tunable, vertically emitting lasers. This innovation enables broad wavelength tuning for advanced lighting and display applications.

Area of Science:

  • Optoelectronics
  • Materials Science
  • Nanotechnology

Background:

  • Emerging applications like solid-state lighting and displays need micro-scale, vertically emitting lasers with tunable wavelengths.
  • Current laser technologies face limitations in achieving broad wavelength tunability and desired geometric arrangements.
  • Existing surface-emitting lasers require complex bandgap or cavity length modifications.

Purpose of the Study:

  • To introduce a novel paradigm for micro-scale vertically emitting lasers with extended tuning range.
  • To demonstrate a fabrication method for lasers with controllable, distinct lasing wavelengths.
  • To enable the creation of "super-pixels" for advanced display technologies.

Main Methods:

  • Utilizing broad gain-bandwidth III-nitride multiple quantum well (MQW) heterostructures.

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Last Updated: May 6, 2026

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
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  • Employing a novel top-down nanowire photonic crystal nanofabrication technique.
  • Integrating multiple monolithically grown gain sections with different emission center wavelengths.

    • Main Results:

    • Achieved single-mode lasing in the blue-violet spectral region.
    • Demonstrated a remarkable 60 nm (16%) wavelength tuning range, controlled by photonic crystal geometry.
    • Successfully addressed challenges of conventional laser technologies for micro-scale applications.

    Conclusions:

    • The developed approach offers a new paradigm for tunable, vertically emitting micro-lasers.
    • This technology can be extended to cover the entire visible spectrum for diverse applications.
    • The method provides a viable solution for creating "super-pixels" for next-generation lighting and displays.