JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@unpublished{guo:napac2022-mozd3,
author = {Z.H. Guo and D.B. Cesar and J.P. Cryan and T.D.C. Driver and J.P. Duris and P.L. Franz and Z. Huang and K. Larsen and S. Li and A. Marinelli and J.T. O’Neal and R. Robles and N.S. Sudar and A.L. Wang and Z. Zhang},
% author = {Z.H. Guo and D.B. Cesar and J.P. Cryan and T.D.C. Driver and J.P. Duris and P.L. Franz and others},
% author = {Z.H. Guo and others},
title = {{Development of Two-Color Sub-Femtosecond Pump/Probe Techniques with X-Ray Free-Electron Lasers}},
% booktitle = {Proc. NAPAC'22},
booktitle = {Proc. 5th Int. Particle Accel. Conf. (NAPAC'22)},
language = {english},
intype = {presented at the},
series = {International Particle Accelerator Conference},
number = {5},
venue = {Albuquerque, NM, USA},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2022},
note = {presented at NAPAC'22 in Albuquerque, NM, USA, unpublished},
abstract = {{We report the generation of GW-level attosecond pump/probe pulse pairs with tunable sub-femtosecond delays at the Linac Coherent Light Source (LCLS). The attosecond 370 eV pump pulse is first generated via the Enhanced Self-Amplified Spontaneous Emission (ESASE) method, then the attosecond 740 eV probe pulse is produced by re-amplifying the electron beam microbunching after the magnetic chicane. Due to the harmonic amplification, the minimal delay between pump-probe pulse pairs (limited by slippage between the light field and the electron bunch) can be shorter than 1 femtosecond. We use the angular streaking technique to measure temporal delays between pump/probe pulse pairs at multiple beamline configurations. When the delay chicane is turned off, the averaged delay is increased by ~150 attoseconds by adding one undulator module for probe pulses. Long delays can be set up by turning the delay chicane on. These experimental results are in agreement with start-to-end XFEL simulations. Looking toward future experiments, our sub-femtosecond pump/probe technique can be applied to observe electronic charge dynamics in molecular systems.}},
}