Xu, Y. Fan, K. Liu, Z. Song, Y. Tsai, C.-Y. Wang, J. JACoW Publishing Geneva, Switzerland 978-3-95450-265-3 10.18429/JACoW-SAP2023-MOPB001 English 14-17 electron FEM simulation timing laser Contribution to a conference proceedings 2024 2024-11 https://doi.org/10.18429/JACoW-SAP2023-MOPB001 https://jacow.org/sap2023/papers/mopb001.pdf Electron bunches with ultra-short bunch length and ultra-high timing stability are crucial for various applications. To achieve these desired characteristics, there is a growing interest in employing Terahertz-driven techniques to manipulate and diagnose electron bunches. This paper presents a method capable of compressing and measuring electron bunch lengths. Theoretical and simulation results demonstrate that the bunch length of 54 is reduced to 4 fs by utilizing THz-driven resonant cavity compression, achieving a compression ratio of 13. Furthermore, we also verify the bunch compression using a terahertz-driven streak camera.