Speaker
Description
X-ray free-electron lasers (XFELs) have emerged as a promising counterpart to high harmonic generation sources for scientific applications requiring high power attosecond X-ray pulses. To date, attosecond XFELs have specialized in producing isolated pulses enabling the study of nonlinear ultrafast science in the impulse regime. We present a method to coherently shape the spectrotemporal characteristics of attosecond X-ray free-electron laser pulses, offering a path towards broader coherent bandwidths and more versatile control of pulse amplitude and phase. We show that with undulator tapering in a fresh slice reamplification scheme, it is possible to produce phase-stable pulse pairs with tunability in color and temporal separation, phase-stable pulse trains, and flexibly chirped pulses. Our method enables bandwidth broadening for attosecond X-ray FELs and offers a path towards sub-100 as pulse duration at soft X-ray wavelengths.
| Region represented | North America |
|---|---|
| Paper preparation format | LaTeX |
