Fig.1 (IMAGE) Osaka University Caption (a) and (b) present the evolution of the z-component of B-field in 3D space. The microtube covers a length of −10 < 𝑧(𝜆) < 10 with the inner and outer radius of 6 and 8 microns. The diffraction stripes in (a) depict the four pumping lasers from x-y sides. The magnetic field inside the microtube increases from 1 to 5 GG within 50 femto-seconds as seen in (b). The gyro motion of the electrons around the central core contributes to the significant amplification. Credit © 2022 Y. J. Gu and M. Murakami. Magnetic field amplification driven by the gyro motion of charged particles. Scientific Reports Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.