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Junjun Jia is a Professor (non-tenure-track) in the Faculty of Science and Engineering at Waseda University, where he has served since 2019, advancing to his current position in September 2024. He earned his Ph.D. in Environmental Studies from the University of Tokyo in 2011. His research centers on functional solid-state materials, with a focus on the synthesis and characterization of inorganic thin films using sputtering and molecular beam epitaxy methods, as well as the evaluation of optical and electronic devices. Prior to joining Waseda, he held positions as Assistant Professor and Postdoctoral Fellow at Aoyama Gakuin University from 2011 to 2019 and has served as a concurrent researcher at the National Metrology Institute of Japan (NMIJ) within the National Institute of Advanced Industrial Science and Technology since 2020.
Jia’s work encompasses semiconductors, optical properties of condensed matter, nonlinear optics, plasmonics, piezoelectric devices, thermal transport in thin films, and ultrafast optical switching materials. He has authored or co-authored numerous peer-reviewed publications, including recent papers on multivalley optical switching in germanium (2025), transient Pauli blocking in InN films (2025), and emerging solid-state thermal switching materials (2024). Among his honors are the WASEDA e-Teaching Award (2022), multiple poster and paper awards from organizations such as the Materials Research Society, European Materials Research Society, and Japanese societies, and recognition for contributions to transparent oxide materials research. He holds committee roles including Director of the Materials Research Society of Japan (since 2025) and other positions in Japanese academic societies focused on surface science and oxide materials.
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Explore Waseda University's groundbreaking research on transient Pauli blocking in InN films for broadband ultrafast optical switching, advancing photonic devices and optical computing.
Waseda University researchers demonstrate transient Pauli blocking in InN thin films for ultrafast broadband optical switching, revolutionizing photonics and computing.
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