Speaker
Description
We propose a novel and simple scheme for generating tunable, phase-locked hard-X-ray pulse pairs in cavity-based free electron lasers. A short electron bunch first amplifies one temporal slice of a long coherent cavity field; after a magnetic delay, the same bunch overlaps a fresh seed slice in a second undulator section, producing a second pulse locked to the same optical reference. The relative phase between the two pulses is controlled by modest detuning of the second undulator. Theoretical analysis and simulations indicate independently tunable pulse delay and multi-radian relative phase control with preserved spectral quality. This mode would enable phase-stable hard-X-ray pump–probe measurements, coherent wave-packet control, nonlinear X-ray spectroscopy, and interferometric studies of ultrafast structural and electronic dynamics.
| I have read and accept the Privacy Policy Statement | Yes |
|---|