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Related Experiment Video

Updated: Jun 20, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

Analysis of grating-coupled surface-emitting lasers.

S A Shakir, T C Salvi, G C Dente

    Optics Letters
    |September 16, 2009
    PubMed
    Summary
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    The dominant mode in grating-coupled surface-emitting diodes radiates poorly, while a weaker mode shows higher radiation power, impacting device efficiency. Increasing distributed Bragg reflector length boosts radiated power and lowers threshold gain.

    Area of Science:

    • Optoelectronics
    • Semiconductor devices
    • Photonics

    Background:

    • Grating-coupled surface-emitting diodes (GCSEs) are crucial for integrated optoelectronics.
    • Understanding mode behavior is essential for optimizing GCSE performance and efficiency.

    Purpose of the Study:

    • To model and analyze the radiation power, threshold gain, and saturation effects in GCSEs.
    • To investigate the impact of different modes on device performance.
    • To explore methods for enhancing radiated power and reducing threshold gain.

    Main Methods:

    • Numerical modeling and analysis of GCSEs.
    • Evaluation of radiation power and threshold gain for different operating modes.
    • Simulation of saturation effects and far-field radiation patterns.

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    Published on: November 21, 2019

    Characterization of Anisotropic Leaky Mode Modulators for Holovideo
    09:36

    Characterization of Anisotropic Leaky Mode Modulators for Holovideo

    Published on: March 19, 2016

    Related Experiment Videos

    Last Updated: Jun 20, 2026

    Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
    07:39

    Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

    Published on: July 21, 2018

    Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
    08:01

    Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

    Published on: November 21, 2019

    Characterization of Anisotropic Leaky Mode Modulators for Holovideo
    09:36

    Characterization of Anisotropic Leaky Mode Modulators for Holovideo

    Published on: March 19, 2016

    Main Results:

    • The lowest-loss mode exhibits poor radiation efficiency.
    • A weaker mode shows significantly higher radiation power, potentially misrepresenting device dominance.
    • The weakly radiating mode reduces overall device efficiency and broadens the far-field pattern.
    • Increasing distributed Bragg reflector (DBR) length doubles radiated power and decreases threshold gain.

    Conclusions:

    • Mode selection is critical for efficient operation of GCSEs.
    • GCSE design can be optimized by adjusting DBR length to enhance radiation and reduce gain.
    • Careful analysis is needed to distinguish true dominant modes from those with high apparent radiation.