On‐Chip Metamaterial Antenna Array with Distributed Bragg Deflector for Generation of Collimated Steerable Beams

Abstract The generation of collimated steerable beams of light is a fundamental function in optics needed in many applications, including free‐space optical communications, remote sensing, and light detection and ranging. Implementing large‐aperture light emitters directly on a photonic integrated chip without using external optics and expensive alignment systems is an outstanding challenge in integrated photonics. Here, the experimental …