A photonic crystal resonator matched to vapor transitions lowers the masing threshold and boosts directional coherent RF output.
A photonic crystal maser uses a resonant vapor-filled slot to generate coherent directional RF radiation with lower power consumption and less interference.
Multiple free magnetic layers switched by spin transfer torque boost oscillator output while lowering phase noise in a compact structure.
Magnetic domain wall precession boosts oscillator output power and quality factor while lowering critical current for compact communication hardware.