TY - RPRT TI - Toward fully coherent soft x-ray free-electron laser via echo-enabled harmonic generation in fourth generation synchrotron light sources AU - Yang, X. AU - Penn, G. AU - Smaluk, V. AU - Huang, X. AU - Yu, L. H. AU - Shaftan, T. PY - 2022 DO - 10.1063/5.0100488 UR - https://www.osti.gov/biblio/1893763 ID - 1893763 ER -