The breakthrough experiment, which could make 3D objects invisible from all directions has been developed by a US-based company The Optical Society, a scientific society dedicated to advancing the theory of light.
The invisibility cloak technique developed by the researchers has been named ‘spectral invisibility cloak’.
Interestingly, there is already a cloaking device currently in use which conceals the object of interest only when the object if illuminated to one specific colour. However, the breakthrough device can completely make objects invisible under broadband illumination or in other words under light sources containing various colours.
According to a report in News18, the study published in the journal Optica could be constructive for sensing, telecommunications and informing processing technologies.
“Our work represents a breakthrough in the quest for invisibility cloaking. We have made a target object fully invisible to observation under realistic broadband illumination by propagating the illumination wave through the object with no detectable distortion, exactly as if the object and cloak were not present,” said Jose Azana, one of the researchers in the team.
While this breakthrough is one of its own kind inventions this is not first time that we have heard about the invisibility cloak as JK Rowling’s fictional character Harry Potter has used the cloak on numerous occasions. Well, it’s quite safe to say that the cloak will be certainly brought to life.
“Conventional cloaking solutions rely on altering the propagation path of the illumination around the object to be concealed; this way, different colours take different amounts of time to traverse the cloak, resulting in easily detectable distortion that gives away the presence of the cloak.
“Our proposed solution avoids this problem by allowing the wave to propagate through the target object, rather than around it, while still avoiding any interaction between the wave and the object,” added another researcher Luis Romero Cortes.