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  1. Phenomenon Key to New Lasers, SensorsThere are several ways to “trap” a beam of light — usually with mirrors, other reflective surfaces, or high-tech materials such as photonic crystals. But now researchers at MIT have discovered a new method to trap light that could find a wide variety of applications.The new system, devised through computer modeling and then demonstrated experimentally, pits light waves against light waves: it sets up two waves that have the same wavelength, but exactly opposite phases — where one wave has a peak, the other has a trough — so that the waves cancel each other out. Meanwhile, light of other wavelengths (or colors) can pass through freely.Read more: http://www.laboratoryequipment.com/news/2013/07/phenomenon-key-new-lasers-sensors

    Phenomenon Key to New Lasers, Sensors

    There are several ways to “trap” a beam of light — usually with mirrors, other reflective surfaces, or high-tech materials such as photonic crystals. But now researchers at MIT have discovered a new method to trap light that could find a wide variety of applications.

    The new system, devised through computer modeling and then demonstrated experimentally, pits light waves against light waves: it sets up two waves that have the same wavelength, but exactly opposite phases — where one wave has a peak, the other has a trough — so that the waves cancel each other out. Meanwhile, light of other wavelengths (or colors) can pass through freely.

    Read more: http://www.laboratoryequipment.com/news/2013/07/phenomenon-key-new-lasers-sensors

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