Propulsion
Solar Sails


Solar sails have emerged over the past decade as a promising and innovative method of space propulsion. By using ultra-thin, lightweight reflective membranes to harness momentum from reflected sunlight, they enable continuous acceleration and the potential for high spacecraft velocities, supporting rapid solar system escape or complex orbital trajectories.
Early prototypes relied on conventional avionics, particularly attitude control systems. However, as sail areas scale up, alternative control strategies become necessary.
We develop metasurface coatings, arrays of nanoscale antennas, designed to produce tailored optical responses, including anomalous reflection. Building on this approach, we demonstrate a membrane-integrated attitude control mechanism that leverages radiation pressure for precise, distributed control without traditional mechanical systems.










