Scientists at University of Michigan, headed by an Indian American Pallab Bhattacharya, have discovered a new and more effectual way to make a coherent laser-like beam.
The ‘laser-like’ beam is made up of hazardous particles called polaritons that are part light and part matter. This polariton laser is fuelled by electrical current and works at room temperature, rather than way below zero. Those attributes make the device the most real-world ready of the handful of polariton lasers ever developed.
Pallab Bhattacharya, professor of engineering at University of Michigan explained that this is big. For the past 50 years, they have been dependent on lasers to make coherent light and presently they have something else based on a totally new principle. The work could advance efforts to put lasers on computer circuits to replace wire connections, leading to smaller and more powerful electronics. It may also have applications in medical devices and treatments among several other things.
Presently lasers are used in the fibre-optic communication that makes the Internet and cable television possible. Bhattacharya concluded that the new prototype requires 1,000 times less electricity to operate than its conventional counterpart made of the same material.
That's certainly a remarkable achievement by the Indian scientist!
We wish a heartfelt Congratulations to the scientist and his team.
(AW:SB)
