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Related Experiment Video

Updated: Jul 9, 2026

Trapping of Micro Particles in Nanoplasmonic Optical Lattice
07:20

Trapping of Micro Particles in Nanoplasmonic Optical Lattice

Published on: September 5, 2017

Cascade lasing with spherical microparticles.

M A Borchers, C Esen, G Schweiger

    Optics Letters
    |November 28, 2007
    PubMed
    Summary

    Researchers explored lasing in dye-doped microparticles. They demonstrated cascade lasing by coupling two microresonators via their evanescent fields, enabling new photonic applications.

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    Area of Science:

    • Optics and Photonics
    • Materials Science

    Background:

    • Dielectric spherical microparticles act as high-quality optical resonators.
    • Optical resonators exhibit an evanescent wave extending beyond the particle boundary.
    • This evanescent field enables near-field interactions between particles.

    Purpose of the Study:

    • To investigate the lasing characteristics of dye-doped solid microparticles.
    • To demonstrate cascade lasing through evanescent field coupling between microresonators.

    Main Methods:

    • Production of dye-doped spherical solid microparticles via aerosol photopolymerization.
    • Characterization of lasing properties of individual and coupled microparticles.
    • Analysis of evanescent field coupling between adjacent microresonators.

    Main Results:

    • Successful generation of lasing in dye-doped microparticles.
    • Demonstration of cascade lasing by coupling two microresonators.
    • Observation of lasing excitation through evanescent wave interaction.

    Conclusions:

    • Dye-doped microparticles can function as efficient laser resonators.
    • Evanescent field coupling provides a mechanism for inter-resonator lasing.
    • This coupling enables the development of novel micro-optic devices.

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    Last Updated: Jul 9, 2026

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