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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
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Radiative coupling between photonic paint layers.

J Martorell, R M Balachandran, N M Lawandy

    Optics Letters
    |October 30, 2009
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    Summary
    This summary is machine-generated.

    Intense laser emission from one medium induces lasing in another at a longer wavelength. This energy transfer is explained by radiation-transfer theory and has applications in wavelength-domain coding.

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    Area of Science:

    • Optics and Photonics
    • Laser Physics
    • Materials Science

    Background:

    • Optically pumped scattering gain media can produce intense isotropic laser emission.
    • Energy transfer between adjacent gain media at different wavelengths is a key phenomenon in laser physics.

    Purpose of the Study:

    • To investigate the induction of isotropic lasing in a secondary gain medium.
    • To elucidate the energy-transfer mechanism between optically pumped scattering gain media.
    • To explore potential applications in wavelength-domain coding.

    Main Methods:

    • Utilizing intense isotropic laser emission from a primary gain medium.
    • Employing a secondary scattering gain medium at a longer wavelength.
    • Applying a theoretical model based on radiation-transfer theory to analyze energy transfer.

    Main Results:

    • Successfully induced isotropic lasing in the adjacent gain medium at a longer wavelength.
    • Demonstrated an energy-transfer mechanism driven by the primary laser emission.
    • The radiation-transfer model accurately describes the observed energy transfer.

    Conclusions:

    • The study establishes a method for inducing tunable lasing through energy transfer between scattering gain media.
    • The findings provide a fundamental understanding of the underlying physics.
    • The effect shows promise for advanced optical communication technologies like wavelength-domain coding.