IPAC'24 - 15th International Particle Accelerator Conference

Development progress of a tunable terahertz free electron laser based on a pre-bunched linear accelerator

MOPG74

20 May 2024, 16:00

2h

Bluegrass (MCC Exhibit Hall A)

Poster Presentation MC2.A06 Free Electron Lasers Monday Poster Session

Speaker

Shaoxiang Dong (University of Science and Technology of China)

Description

To explore and detect novel effects and mechanisms inherent in materials, a tenable wavelength terahertz free electron laser (THz-FEL) is integrated into the terahertz near-field high-throughput material property testing system (NFTHZ). Employing a compact linear accelerator capable of adjusting electron energy within the range of 10 to 18 MeV as the injector, pre-bunching of electron bunches is implemented to create longitudinal spacing structures by manipulating the driving laser. By appropriately correlating the forming factor of electron bunches, electron beam energy at the undulator entrance, and the undulator K value, a terahertz free electron laser with peak power in the megawatt range and a central wavelength spanning from 0.5 to 5 THz can be achieved. This article provides an overview of the development progress of THz-FEL within the NFTHZ framework.

Funding Agency

Supported by the National Natural Science Foundation of China (51627901) and the National Program on Key Basic Research Project (2023YFA1610100)