A group of japanese scientists have created touchable holograms,three dimensional virtual objects that can be manipulated by human hand.
Using femtosecond laser technology the researchers developed Fairy lights a system that can fire high frequency laser pulses that last one millionth of one millionth of a second.
The pulses respond to human touch ,so that - when interrupted- the hologram's pixels can be manipulated in mid-air.
The touchable hologram ,which is being experimented with at the Utsunomiya University Center for Optical Research and Education, uses a laser provided by the university to the researchers,