Wavelength-Multiplexed 2D Beam Steering via a Passive Diffractive Network
Researchers have developed a novel passive diffractive optical network capable of wavelength-multiplexed 2D beam steering. This system utilizes deep learning to design cascaded diffractive layers that map distinct wavelengths to specific output angles, enabling arbitrary 2D beam steering without mechanical or electronic components. The framework has been numerically demonstrated to steer beams across 625 wavelength channels and experimentally validated in both terahertz and visible spectrum regimes. AI
IMPACT This research could lead to more compact and efficient optical systems for communications, imaging, and sensing.