Scientists build the smallest optical frequency comb to-date

Optical frequency combs are laser sources whose spectrum consists of a series of discrete, equally spaced frequency lines that can be used for precise measurements. In the last two decades, they have become a major tool for ...

More efficient nano-LED opens door to faster microchips

The electronic data connections within and between microchips are increasingly becoming a bottleneck in the exponential growth of data traffic worldwide. Optical connections are the obvious successors but optical data transmission ...

Brilliant colors from environmentally friendly crystals

Quantum dots have made it possible to substantially increase color quality in LCD displays. However, these cadmium-based nanocrystals have proven to be harmful to the environment. Fraunhofer researchers are working together ...

'Cleaning' boosts solar cell efficiency

Energy losses in nanowire solar cell can be significantly reduced by 'cleaning' the surface of the cells with a special etching method. This has been shown by researchers at Eindhoven University of Technology (TU/e), Delft ...

Technology could bring high-end solar to the masses

Engineers at the University of California, Berkeley, have developed an inexpensive new way to grow thin films of a material prized in the semiconductor and photovoltaic industries, an achievement that could bring high-end ...

Deep-space stations gain made-in-Europe hearing boost

Picking up ultra-weak signals from spacecraft exploring deep in our Solar System requires cooling a detector to within a few degrees of absolute zero. Thanks to ESA's support, the technology is now available in Europe for ...

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