lasers

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Remote high-voltage sensor unveiled at Sandia gamma ray lab
November 10, 2021 • ALBUQUERQUE, N.M. — Ever since the first human placed a bare hand on an uninsulated electric line, people have refrained from personally testing energetic materials. Even meters made of metal can melt at high voltages. Now, using a crystal smaller than a dime and a laser smaller than a shoebox,...
Categories: Energy / Environment / Water, Homeland security, Materials Science, Physics
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Sandia National Laboratories researcher Israel Owens holds the optical sensor used to house the crystal that proved central to his team’s successful attempts to measure very high voltages. The two red spots on each side of the crystal are due to laser light reflecting off the side mirrors used to direct light through the middle of the crystal. The actual experiments used green laser light.

Guiding Light: Sandia creates 3-D metasurfaces with optical possibilities
March 9, 2017 • ALBUQUERQUE, N.M. — Metamaterials don’t exist in nature, but their ability to make ultra-thin lenses and ultra-efficient cell phone antennas, bend light to keep satellites cooler and let photovoltaics absorb more energy mean they offer a world of possibilities. Formed by nanostructures that act as “atoms,” arranged on a substrate...
Categories: Materials Science, Nanotechnology, Science / Technology / Engineering
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Metamaterials