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Quiet Lasers, Cool Science

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Trapping and cooling of atoms and nanoparticles is a growing area of laser-assisted research, with implications for quantum computing and ultraprecise sensing.

MANTAS BUTKUS, COHERENT INC.

In the 1960s, just a few years after the laser was invented, researchers contemplated its use as a precision tool to control the motion of neutral atoms. Early research focused on the use of an opto- mechanical force based on the scattering of light. In simple terms, it was found that when an object was irradiated with light from a single direction, the object could randomly re-radiate or scatter in all directions, causing a small net transfer of momentum from the photons to the object. Eventually this led to the creation of “optical molasses” at a temperature of <50...Read full article

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    Published: June 2018
    Glossary
    optical isolator
    Also known as an optical diode, an optical isolator is a device that utilizes the Faraday effect to suppress or redirect backscattered or backreflected light in order to allow light transmission in one direction only. Optical isolators are commonly found in laser cavities.
    trapping and coolingnonplanar ring oscillator (NPRO)NPRO crystaloptical isolatorpiezoelectric actuatordiode-pumped crystaloptical lattice trapquantum optomechanicsUniversity College Londonlaser refrigeration cavity optomechanicsLasersFeatures

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