Physics
Bizarre test shows light can actually cast its own shadow
With the help of a ruby cube and two laser beams, researchers made one ray of light cast a shadow when illuminated by the other
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Physics
Cloud-inspired material can bend light around corners
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Physics
Tiniest ‘ruler’ ever measures distances as small as an atom’s width
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Physics
Quantum holograms can send messages that disappear
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Physics
Liquid crystals could improve quantum communication devices
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Physics
How materials that rewind light can test physics’ most extreme ideas
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Physics
Doughnut-shaped swirls of laser light can be used to transmit images
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Physics
Quantum forces used to automatically assemble tiny device
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Chemistry
Gold flecks make super-transparent glass fully opaque from one side
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Technology
Lasers smaller than a human hair emit doughnut-shaped light
Incredibly thin, hollow wires made from gallium and nitrogen can produce laser beams that are hollow with a ring-shaped cross-section, and that could be used to create optical fibres out of thin air
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Physics
Einstein may be wrong about how mirrors travelling at light speed work
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Technology
Spiral scratches on contact lenses can turn them into multifocals
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Chemistry
Light-sensitive molecules could make carbon capture more efficient
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Space
Galaxy smash-ups may explain strange light from early universe
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