Temporal characterization of ultrashort linearly chirped electron bunches generated from a laser wakefield accelerator

C. J. Zhang, J. F. Hua, Y. Wan, B. Guo, C. H. Pai, Y. P. Wu, F. Li, H. H. Chu, Y. Q. Gu, W. B. Mori, C. Joshi, J. Wang, W. Lu