University of Wollongong
Enbang Li
Scientist has developed an innovative device capable of “bending” light in the laboratory, paving the way for new remote sensing technologies.
Albert Einstein stated that the speed of light is constant and independent of the observer’s movement.
Now, an Australian scientist has developed an innovative device capable of “bending” light in the laboratorypaving the way for new remote sensing technologies with applications ranging from geology to environmental monitoring.
The, led by physicist Enbang Lifrom , is based on a compact equipment measuring about one meter long, which uses fiber optic coils to measure extremely small temporal differences between laser beams.
These variations, of the order of picoseconds, allow you to detect how Gravity influences the propagation of lightreproducing on a small scale a phenomenon known as gravitational lens.
This effect, predicted by the theory of relativity of Albert Einstein, describes the way gravity can bend the path of light. Although it is commonly observed in astronomical contexts — such as in the analysis of distant stars and galaxies — its controlled replication in the laboratory has always been a significant technical challenge.
The new system makes it possible to measure minimal variations in the gravitational field, which could reveal underground changes invisible to the naked eye, highlights the .
Between aces potential applications Highlights include the detection of underground water reserves, the monitoring of magma accumulations under volcanoes and the identification of tunnels or hidden geological structures.
Furthermore, the technology could overcome limitations of traditional sensorswhich depend on mechanical systems sensitive to vibrations. By using light, these new sensors promise greater precision, stability and adaptability to mobile platforms such as planes or submarines.
Despite the promising results, the device is still in the experimental phase, having been tested in controlled laboratory conditions.
