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Related Experiment Video

Updated: Jan 19, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
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Design rules for white light emitters with high light extraction efficiency.

Peifen Zhu, Hongyang Zhu, Saroj Thapa

    Optics Express
    |September 13, 2019
    PubMed
    Summary
    This summary is machine-generated.

    White light emitters with cone arrays achieve 81% light extraction efficiency across the visible spectrum. This design enhances efficiency independent of wavelength and cavity thickness, guiding future illumination and display technologies.

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    Area of Science:

    • Optoelectronics
    • Photonics
    • Materials Science

    Background:

    • Light extraction efficiency is crucial for white light emitter performance.
    • Current designs often show wavelength and cavity thickness dependency, limiting broad applicability.
    • Optimizing light extraction is key for energy-efficient lighting and display technologies.

    Purpose of the Study:

    • To investigate a novel design for enhancing light extraction efficiency in white light emitters.
    • To eliminate wavelength and cavity thickness dependency in light extraction.
    • To provide design guidelines for highly efficient white light emitters.

    Main Methods:

    • Utilizing the finite-difference time-domain (FDTD) method for optical simulations.
    • Designing and analyzing cone arrays on top of white light emitters.
    • Simulating light extraction efficiency across the visible light spectrum (400-700 nm).

    Main Results:

    • Achieved a significant enhancement in light extraction efficiency, reaching 81%.
    • Demonstrated that cone arrays eliminate dependency on wavelength and cavity thickness.
    • Confirmed high extraction efficiency across the entire visible spectrum.

    Conclusions:

    • Cone array structures are highly effective in boosting light extraction efficiency for white light emitters.
    • The proposed design offers a pathway to broadband, efficient light emission.
    • This research provides valuable insights for developing next-generation general illumination and display devices.