Semiconductors & Integrated Circuits
MAGNONIC ELECTROMAGNETIC RADIATION SOURCES WITH HIGH OUTPUT POWER AT HIGH FREQUENCIES
Inventors: Jiamian Hu, Shihao Zhuang, Mingrui Li
UW-Madison researchers have developed a fundamentally new type of mmW emitter, which only shows moderate power drop even at the 300 GHz frequency. The device architecture is a multilayer stack of metal, dielectric, and magnetic layers, and operates based on optical excitation of standing spin waves (magnons) in the magnetic layers which in turn produces mmW via magnetic dipole radiation. This device could be embodied as a single layer device, a super lattice structure, or as a phased array system.
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