AUTHOR=Carbajo Sergio , Fallahi Arya , Faure Jerome , Wong Liang Jie TITLE=Editorial: Lasers in Accelerator Science and Secondary Emission Light Source Technology JOURNAL=Frontiers in Physics VOLUME=7 YEAR=2019 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2019.00162 DOI=10.3389/fphy.2019.00162 ISSN=2296-424X