‘Superman’s laser vision a step closer to reality’
Superman’s ability to shoot laser beams from his eyes has come a step closer to reality, thanks to scientists who have developed an ultra-thin membrane laser using organic semiconductors. These ocular lasers could be harnessed for new applications in security, biophotonics and photomedicine, according to researchers from the University of St Andrews in the UK. Published in the journal Nature Communications, the research explains that the threshold of the membrane lasers is compatible with the requirements for safe operation in the human eye.
The team was also able to demonstrate ocular lasing using the cow eye as a model system. The new laser approaches the fundamental limit in specific weight and thickness, as well as an exceptional mechanical flexibility, which allows to put them on a contact lens or a bank note. “In ancient Greece, Plato believed that visual perception is mediated by ‘eye beams’ – beams actively sent out by the eyes to probe the environment,” said Malte Gather, a professor at the University of St Andrews.
“Plato’s emission theory has of course long been refuted, but superheroes with lasers in their eyes live on in popular culture and comic books,” said Gather. “Our work represents a new milestone in laser …read more