Development of Terahertz Radiation Sources Using the LEENA Compact Linear Accelerator

Abstract

SUMMARYTunable and high‐power terahertz radiation sources using relativistic electron beams from a compact linear accelerator (LEENA) are under development. Synchrotron radiation and Smith‐Purcell radiation in the THz region were successfully measured. The coherent radiation power from an electron bunch shorter than 1 ps is estimated theoretically to be about 107 larger than the incoherent power. Recent experimental results on the generation of THz radiation and numerical results on high‐power coherent radiation from a short electron bunch are reported.