As we move towards a sci-fi-like future, we’ve seen companies come up with many innovative technologies to charge our electronic devices. So now, scientists have found an option to completely beam energy across a room that may potentially charge any digital device with no cables or wires. And it’s all possible, because of a new prototype device which they named “anti-laser”.
However, there was a big problem. Our world isn’t as systematic because it needs to be for the systematic exchange of energy to take place. Hence, implementing the entire thing was quite a task for the scientists engaged in the project.
How Does it Work?
With this device, the scientists finally saw this entire thing coming to life. You see, this “anti-laser” device is able to receive scattered energy beamed around a space in a haphazard manner which makes it possible to obtain 99.996% of the sent power.
The formal term for this methodology is coherent perfect absorption (CPA). This makes use of a machine to send energy across the room and the anti-laser sucks it again.
In the past, such experiments had a time-reversal symmetry. For instance, in a video, if a person is making a pizza, you will notice the particular person place the sausages on the pizza bread. However, if you play the same video backward you will notice the person taking the sausages off the bread and placing them again.
In this particular experiment, the researchers used magnetic fields to swing photons so aggressively that time-reversal symmetry was lost. Imagine it like stirring sugar in hot water. And even in this situation, the device received the power. This “proves that the concept of CPA goes far beyond its initial conception as a ‘time-reversed laser’” wrote the researchers in their paper.
Well, sure it’s still a dream, a dream of a future with no cables and wires. However, with this invention, we’re definitely one step closer to creating that dream a reality.