Synthetic Magnetic Fields Steer Light on a Chip for Faster Communications
2025-09-13
Researchers from Shanghai Jiao Tong University and Sun Yat-Sen University have developed a method to generate pseudomagnetic fields in silicon photonic crystals, enabling precise control over light flow at telecommunication wavelengths. By systematically altering the symmetry of tiny repeating units, they can design pseudomagnetic fields with tailored spatial patterns. This has been demonstrated in compact devices like S-bend waveguides and power splitters, successfully transmitting a 140 Gbps data stream. This breakthrough opens new avenues for optical computing, quantum information, and advanced communication technologies.
(phys.org)