Chen, J., Shi, J., Chen, M., Jiang, J., Su, T., Yang, C., Sun, H., Sun, H., Zhang, M., Jia, P., Li, X. (2026). Transition from one-step to stepwise propagation of a positive streamer with varying pulse durations in an argon plasma jet. Applied Physics Letters. https://doi.org/10.1063/5.0321554