*Akihiro Tomura¹, Chiaki Ohae², Ken-ichi Nakagawa³, Kaoru Minoshima^1,2, Masayuki Katsuragawa^1,2 (1. Graduate School of Informatics and Engineering, University of Electro-Communications (Japan), 2. Institute for Advanced Science, University of Electro-Communications (Japan), 3. Institute for Laser Science, University of Electro-Communications (Japan))

*David Novoa^1,2,3, Jie Luan¹, Philip St.J. Russell¹ (1. Max Planck Institute for the Science of Light (Germany), 2. University of the Basque Country (UPV/EHU) (Spain), 3. Ikerbasque, Basque Foundation for Science (Spain))

Chia-Lun Tsai¹, An-Yuan Liang¹, Liang-Xian Xie¹, Shih-Cheng Liu¹, Po-Wei Lai¹, Ming-Shiang Tsai¹, *Ming-Wei Lin¹, Ming-Chang Chen¹ (1. National Tsing Hua Univ. (Taiwan))

*Arthur Schoenberg¹, Markus Seidel¹, Esmerando Escoto¹, Stefanos Carlström^4,5, Gunnar Arisholm⁶, Tino Lang¹, Ingmar Hartl¹, Christoph M. Heyl^1,2,3 (1. Deutsches Elektronen-Synchrotron DESY (Germany), 2. Helmholtz-Institut Jena (Germany), 3. GSI Helmholtzzentrum für Schwerionenforschung GmbH (Germany), 4. Department of Physics, Lund University (Sweden), 5. Max-Born-Institut (Germany), 6. FFI (Norwegian Defence Research Establishment) (Norway))

*TRIVIKRAMARAO GAVARA¹, WONKEUN CHANG¹ (1. Nanyang Technological University (Singapore))

Joshua P. Lourdesamy¹, *Antoine F. J. Runge¹, Tristram J. Alexander¹, Darren D. Hudson², Andrea Blanco-Redondo³, C. Martijn de Sterke¹ (1. University of Sydney (Australia), 2. CACI Photonics (United States of America), 3. Nokia Bell labs (United States of America))