Japan achieves 500,000+ tesla magnetic field force with new laser

Researchers at Osaka University have developed a novel technique called bladed microtube implosion (BMI) that generates extremely strong magnetic fields—exceeding 500 kilotesla—using ultra-intense laser pulses directed at small hollow metal cylinders with blade-like internal structures. As the laser heats and compresses the cylinder, the plasma inside spins and creates a powerful electric current, which in turn produces a magnetic field without requiring any external magnetic field to initiate the process. This self-amplifying mechanism mimics star-level magnetic forces and could enable the study of extreme magnetic environments in compact laboratory settings. The breakthrough, led by Professor Masakatsu Murakami, was demonstrated through advanced computer simulations using Osaka University’s SQUID supercomputer and a specialized particle behavior model. Although not yet experimentally verified, the researchers anticipate near-term testing with existing laser systems. Potential applications span space science—simulating magnetized stars and cosmic jets—fusion energy research, particularly improving proton-beam fast ignition techniques, and national defense