Zhang, YichaoFlannigan, David, J2021-08-252021-08-252021-08-25https://hdl.handle.net/11299/223221The folder contains images in .dm3, .dm4, and .tif format. The naming convention is Run_7_0_image number in obtained order_time point on the delay stage.file format. Noise_4_30s_2.dm3 is the dark reference image. Each image in the folder was subtracted by the reference image before any imaging processing.This dataset includes 4D ultrafast electron microscopy (UEM) bright-field imaging data supporting the paper "Imaging Nanometer Phonon Softening at Crystal Surface Steps with 4D Ultrafast Electron Microscopy".CC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/UEM data supporting "Imaging Nanometer Phonon Softening at Crystal Surface Steps with 4D Ultrafast Electron Microscopy"Datasethttps://doi.org/10.13020/qxmn-1t31