Imagine a drone that glides through the air without the familiar buzz of propellers or the hum of motors, a machine so quiet and still that it seems to defy the very principles of flight. This is no longer a vision confined to science fiction. A French startup, Photonaire, based in the vibrant city of Lyon, has brought this concept to life with a drone that flies using nothing but light.
By tapping into the power of concentrated laser beams, this groundbreaking invention generates thrust through a phenomenon known as “optical lift,” offering a glimpse into a future where aerial and space technology could be transformed. Photonaire’s creation weighs a mere 90 grams, a featherweight by any standard, yet it carries the weight of innovation on its delicate frame.
Unlike traditional drones that rely on mechanical components to lift off and manoeuvre, this device uses high-powered lasers reflected off ultra-thin metamaterials—materials engineered with precision to harness light in ways that conventional substances cannot. Drawing inspiration from solar sail technology, which uses sunlight to propel spacecraft, and the subtle forces of quantum pressure, the drone hovers and adjusts its path by altering the angle of these reflective surfaces in real time.
