In a world-leading study researchers at Macquarie University have proven a method for multiplying laser power using diamond, demonstrating that a laser similar to the Star Wars 'superlaser' may no longer remain in science fiction.

The research, published in Laser and Photonics Reviews demonstrates a concept – reminiscent of the Star Wars Death Star sci-fi laser – where the power of multiple laser beams is transferred into a single intense output beam that can be directed to the intended target.

This new laser development has real-world and high-stakes applications where high power lasers are seen as a key tool in areas such as defence.

"Researchers are developing high power lasers to combat threats to security from the increased proliferation of low-cost drones and missile technology. High power lasers are also needed in space applications including powering space vehicles and tackling the growing space junk problem that threatens satellites," said co-author Associate Professor Rich Mildren.