Researchers from the University of California, Los Angeles (U.S.A.) used a common computer optical drive to convert thin layers of graphite oxide into graphene, which was then incorporated into flexible electrochemical capacitors; A team at Harvard University (U.S.A.) has developed a fabrication process that enables the creation of nanostructures patterned in 3-D; An international team of researchers used a microcavity ring resonator as both a laser filter and mode-locker; Scientists in Germany recently made good-quality calcium carbonate microlenses by precipitating them out of solution. They got inspiration a reef-dwelling brittlestar whose body is covered with tiny calcium carbonate lenses that act as the lenses for compound eyes.

© 2012 Optical Society of America

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