Holger Motz received his Ph.D. in 2011 from Friedrich-Alexander Universität Erlangen-Nürnberg, Germany for this research on dark matter search with the ANTARES deep-sea neutrino telescope. He came to Japan in 2012, working at the University of Tokyo's Institute for Cosmic Ray Research as a project researcher in the Ashra air-shower detector project. He came to Waseda University where he joined Torii Laboratory and the CALET project in 2013 as a postdoc. In 2014 he became assistant professor in the International Center for Science and Engineering Programs of Waseda University's Faculty of Science and Engineering, and in 2018 started his current position as associate professor in the newly founded Global Center for Science and Engineering. His academic interests are in astro-particle and cosmic-ray physics with a focus on indirect dark matter search.