Transient (000)-order attenuation effects in ultrafast transmission electron diffraction

We discuss the observation of a transient (000)-order attenuation in time-resolved transmission electron diffraction experiments. It is shown that this effect causes a decrease of the diffraction intensity of all higher diffraction orders. This effect is not unique to specific materials as it was observed in thin Au, Ag and Cu films. (C) 2011 American Institute of Physics. [doi:10.1063/1.3554405]