The hidden side of light can transform electronics.

“Illustrative scenario of HHG at Terahertz frequencies, induced by the pumping of a 2.5 W power THz QCL on a Topological insulator SRR. Credit: Alessandra Di Gaspare et al.” (ScitechDaily, Scientists Unlock a Hidden Side of Light That Could Transform Technology)

Optical data transmission is much safer. Than radiowave transmission. Ultra-secure laser data transmission has one little problem. Those laser rays don’t travel through the walls. It’s easy to jam the laser data transmitter simply by putting a wall between the transmitter and receiver. There is a possibility of using some other types of electromagnetic radiation to transmit data. One of those radiation types is terahertz radiation. 

What if you can break light into the terahertz (THz) area and then turn it back to light? This could make a new advance in electronics. It’s possible to make new and faster communication. By using light and THz radiation together. In the simplest binary systems, the THz radiation can mean zero, and the light can mean one. If those bits are numbered, the system can transmit data very fast. But the thing. That makes THz radiation a very interesting tool; it is a simple thing. THz radiation can travel through walls. That allows researchers to create a communication system that is. Hard to eavesdrop. If the system can transform the radiation wavelength. between Thz and light. This makes it easier to cover information. 

“A new global study uncovers surprising behavior in the universe’s most elusive particles, hinting at answers to why anything exists at all. Credit: Stock” (ScitechDaily, This Strange Particle May Hold Clues to the Universe’s Biggest Secrets)

The ability to transmit data through walls is one of the things. That limits the quantum network creation. One of those solutions can be a low-power X-ray laser. Those systems are dangerous to humans, but it's possible to aim for coherent X-ray radiation. Makes it possible to position those systems. To a level. Their radiation will not touch people. 

Another possibility to transmit data in qubits is neutrinos. A neutrino is a so-called ghost particle that can travel through walls and even through planets and stars.  Those particles can allow for the transmission of data as real qubits. In the perfect quantum networks, data that travels in the qubits is connected to particles. The system can work like this: the network stops the neutrino at the beginning of the nano-tube-based system. 

There, the system can transport data into that neutrino qubit. And then send it through the quantum network. In those systems, the lasers can aim the qubit in the right direction. The system uses laser LEDs like a pinball. Those systems push neutrinos into the right tracks. This system requires a lot of new technology. The ability to create neutrino qubits would be as fundamental a thing as the internet itself. The neutrinos’ features make them very hard to control.  But maybe. They can someday transport data over the quantum networks. 

https://scitechdaily.com/scientists-unlock-a-hidden-side-of-light-that-could-transform-technology/

https://scitechdaily.com/this-strange-particle-may-hold-clues-to-the-universes-biggest-secrets/

https://en.wikipedia.org/wiki/Qubit