THz-radiation production using dispersively-selected flat electron bunches
- Resource Type
- Working Paper
- Authors
- Thangaraj, Jayakar; Piot, Philippe
- Source
- Subject
- Physics - Accelerator Physics
- Language
We propose an alternative scheme for a tunable THz radiation source generated by relativistic electron bunches. This technique relies on the combination of dispersive selection and flat electron bunch. The dispersive selection uses a slit mask inside a bunch compressor to transform the energy-chirped electron beam into a bunch train. The flat beam transformation boosts the frequency range of the THz source by reducing the beam emittance in one plane. This technique generates narrow-band THz radiation with a tuning range between 0.2 - 4 THz. Single frequency THz spectrum can also be generated by properly choosing the slit spacing, slit width, and the energy chirp.
Comment: Submitted to Applied Physics Letters