This includes research on fully ionized high-temperature fusion plasma, weakly ionized low-temperature atmospheric pressure plasma, and plasma propulsion for space missions.

Plasma is a state where electrically neutral atoms or molecules are separated into electrons and ions, possessing various electromagnetic properties.

Gas jets impinging on a liquid can form a cavity on the surface of the liquid body. The depth of these cavities become deeper with increasing gas jet speed; however, the depth is limited by several instabilities such as bubbling (Rayleigh instability) and splashing (Kelvin-Helmholtz instability). We have demonstrated that weakly ionized plasma jets can greatly enhance the stability of such cavities. The increased stability of the cavity is due to electrohydrodynamic (EHD) forces, which come from the charges and electric field in the plasma jet. The EHD force can increase the total stabilizing force in such cavities by up to 48%, compared to pure gas jets. This work was published in Nature. https://doi.org/10.1038/s41586-021-03359-9

This study presents a machine learning-based methodology for precisely forecasting the performance of Hall thrusters—vital components in space propulsion and industrial ion beam systems. Leveraging an ensemble of neural networks trained on 18,000 experimentally validated simulation datasets, the approach delivers highly accurate predictions of thrust and discharge current. This advancement facilitates the accelerated design and optimization of high-efficiency thrusters, significantly reducing development time. This work was published in Advanced Intelligent Systems. https://doi.org/10.1002/aisy.202570011