Ross Harder has been the lead developer of coherent diffractive imaging (CDI) instrumentation at the Advanced Photon Source since 2008. He has authored and co-authored more than fifty publications in which CDI was used to investigate everything from properties of operating battery materials to time resolved phonon dynamics in nanocrystals.  

His primary interest is in nanometer-scale imaging methods including coherent X-ray diffraction imaging, transmission X-ray microscopy and scanning X-ray microprobes, particularly in situ and operando applications to materials science.