Speaker
Description
Coherent terahertz (THz) radiation sources based on storage rings hold significant future for generating high-average-power THz radiation, owing to the high revolution frequency of the electron beam. However, the achievable repetition rate is limited by the long time required for the ring's damping mechanism to dissipate the phase-space perturbation introduced by the modulation and radiation process. To overcome this bottleneck, we propose a novel scheme that incorporates a dedicated demodulation section to enhance the generation of high-repetition-rate coherent THz radiation. In this scheme, after a seed laser imposes a density modulation and a THz wiggler emits coherent radiation, the electron beam is actively cooled in the demodulation section. This process facilitates the beam's rapid recovery, allowing it to be effectively damped and ultimately reach a new steady state. Simulation results demonstrate that this integrated setup successfully produces coherent THz radiation pulses at a repetition rate of 100 kHz, achieving an average power of 6.2 mW at 10 THz.
Funding Agency
This work is supported by the National Natural Science Foundation of China (NSFC)under Grants No. 12305158, the Fundamental Research Funds for the Central Universities No. WK2310000122.
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