Ultrafast Science / 2021 / Article / Fig 2

Research Article

THz-Enhanced DC Ultrafast Electron Diffractometer

Figure 2

Electric field distribution. (a) Transverse cross-section of the longitudinal electric field distribution for the TM01 mode with 0.43c phase velocity simulated with CST Microwave Studio [25]. The dielectric wall thickness is 140 μm, and the vacuum channel diameter is 510 μm. (b) The central lineout of the longitudinal electric field distribution in (a). (c, d) Transverse cross-section of the electric field distribution at TM01 mode with 0.95c phase velocity and the central lineout of the field distribution. The dielectric wall thickness is 90 μm, and the vacuum channel diameter is 510 μm.