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A new laser design helps create usable terahertz radiation, which penetrates common materials but doesn’t harm tissue.
Silicon chips and lasers could pick out and count cells on microfluidic devices.
Laser phosphor displays promise efficiency and simple manufacturing.
Metamaterials that convert lower-energy photons to usable wavelengths could offer solar cells an efficiency boost.
A single photo can be reconstructed into a 3-D scene with Make3D.
Affordable HD-DVD players are one potential payoff from a simpler process for making semiconductor lasers.
Tiny chemical probes implanted into patients could identify proteins in trace quantities.
A vehicle uses off-the-shelf components to build 3D maps of an area.