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Microscopic Bundle Lases Like a Sieve

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Hank Hogan

A recent innovation in lasers might make a bundle -- a microscopic bundle, anyway. Researchers at the Darmstadt University of Tech nology have fabricated a new class of microlasers by using a molecular sieve to hold an organic dye. Constructed out of a bundle of zeolite (AlPO4-5) tubes with 0.73-nm-wide channel pores, the microlaser produces 687-nm light. The lasing action travels around the diameter of the bundle, reflecting off the internal walls of the structure. As photons make multiple trips around the bundle, the dye amplifies the beam. The result is the intense, coherent light of...Read full article

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    Published: June 1999
    Research & TechnologyTech PulseLasers

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