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How ‘Random’ Lasers Work

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SALT LAKE CITY, Jan. 25, 2010 – When University of Utah scientists discovered a new kind of laser that was generated by an electrically conducting plastic or polymer, no one could explain how it worked, and some doubted it was real. Now, a decade later, the researchers have found that these "random lasers" occur because of natural, mirrorlike cavities in the polymers, and they say such lasers may prove useful for diagnosing cancer. "Nobody knew how it worked until now," said Z. Valy Vardeny, a distinguished professor of physics and senior author of the new study. "We succeeded in imaging the cavities. This is a big...Read full article

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    Published: January 2010
    Abdullah TulekBiophotonicscancerconducting plasticconducting polymerconventional laserDOO-PPVlaser emissionlasinglossless resonatorsMicroscopymirrorlike cavities in polymersNational Science Foundationorganic polymerpi-conjugated polymer filmpulsed lasersrandom laserResearch & TechnologyUniversity of UtahZ. Valy VardenyLasers

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