There is a basic disparity between the method in which information is formulated and transmitted by current technologies. To structure information, electronic current are moved around on semiconductor chip and to transfer it, light exhibits are moved down to optical units. Present techniques of transforming between optical and electrical signals are both slow and inefficient and scientists have been hunting for methods to integrate the two.
For making electrical more powerful and fast, more transistors are required to be squeezed into semiconductor chips. For the past numerous years, the value of transistors on a singular chip has doubled in every two year, it is known as law of Moore. However, as chips keep shrinking in size, researchers now have to handle quantum effects linked with singular electrons and atoms, and they are searching for substitutes to the electron as the basic carrier of data for keeping pace with law of Moore
Figure 1: Polariton liquid emits light by applying electric fields to a semiconductor chip
The scientists from Cambridge’s University, headed by lecturer Jeremy Baumberg from the NanoPhotonics Centre, in association with scientists from Greece and Mexico, have developed a switch with use of a novel state of matter known as Polariton Bose-Einstein condensate for mixing optical and electric signals with use of miniscule volumes of energy. Polariton Bose- Einstein condensates are created by ensnaring light between mirrors linked only a little millionths of a meter apart, and allowing it link with sleek slabs of semiconductor substance, crafting a small-light, less-matter substance known as polariton.
"The switch of polaritons links the finest properties of optics and electronics into one small gadget that can offer at extremely high speeds while utilizing minimal volumes of power," says the lead author of the research Dr. Alexander Dreismann from the Cavendish Laboratory of Cambridge.
"We have prepared a field-effect light switch that can link the gap between electronics and optics," says co-author of the research, Dr Hamid Ohadi, who also belongs to the Cavendish Laboratory. "We are trying to reach the limits of how minute we can prepare transistors and electrical based on liquid light could be a technique of boosting the efficiency and power of the electronics we rest on."
While the prototype gadget functions at cryogenic temperatures, the scientists are developing other substances that can function at room temperature, so that the device can be commercialized. The other crucial factor for the commercialization of the gadget is mass scalability and production.
Conclusion - "Since the prototype is grounded on well-structured fabrication technology, it has the ability to be scaled up in the close future," says the co-author of the study lecturer Pavlos Savvidis from the Institute of Crete, Greece. The group is presently exploring more opportunities for commercializing the technology and also incorporating it with the current technology base.