Indian origin scientist takes step towards building superfast far-infrared computers

April 15th, 2008 - 2:11 pm ICT by admin  

Washington, April 15 (ANI): A scientist of Indian origin has tested devices aimed at harnessing far-infrared light, which marks a step towards building superfast computers that run on far-infrared light instead of electricity.

The devices were tested by Ajay Nahata, who is a University of Utah professor of electrical and computer engineering.

Developed by University of Utah engineers, the devices are the equivalent of wires that carried and bent far-infrared light, also known as terahertz radiation, which is the last unexploited portion of the electromagnetic spectrum.

Electricity is carried through metal wires. Light used for communication is transmitted through fiberoptic cables and split into different colors or channels of information using devices called waveguides.

A waveguide is something that allows you to transport electromagnetic radiation from one point to another point, or distribute it across a circuit, said Nahata.

The researchers used pieces of stainless steel foil about 4 inches long, 1 inch wide and 625 microns thick, or 6.25 times the thickness of a human hair.

They perforated the metal with rectangular holes, each measuring 500 microns (five human hair widths) by 50 microns (a half a hair width).

The rectangular holes were arranged side by side in three different patterns to form wire-like waveguides to transmit, bend, split or combine terahertz radiation.

According to Nahata, We have taken a first step to making circuits that can harness or guide terahertz radiation.

Eventually in a minimum of 10 years this will allow the development of superfast circuits, computers and communications, he added.

If terahertz radiation is to be used in computing and communication, it not only must be transmitted from one device to another, but it has to be processed, according to Nahata.

This is where terahertz circuits are important, he said. The long-term goal is to develop capabilities to create circuits that run faster than modern-day electronic circuits so we can have faster computers and faster data transfer via the Internet, he added. (ANI)

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