The laser enables ghostly lettering to be drawn in mid-air, which is viewable from all angles. (Image: Hongtuo Ultrafast Laser Joint Laboratory) 

Researchers 'write' in mid-air using ultrashort pulse lasers

Lasers have previously been able to produce optical illusions, however have required a dust/cloud medium in order to do so

The Vuzix M300 AR headset is one of a variety of products targeting industrial applications

Can holograms help replace smartphones?

Andy Extance finds that although augmented reality products talk about holograms more than they use them, holographic technology still has huge potential

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