Members (メンバー)

Professional Experience

• Research Associate: Kagami Memorial Laboratories of Materials Science, Waseda University (1994)
• Research Associate: Department of Physics, University of Tokyo (1994)
• PRESTO Researcher: Japan Science and Technology Agency (2000-2003)
• Associate Professor: Institute for Materials Research, Tohoku University (2001)
• Sub-Group Leader: National Institute for Materials Science (2004)
• Visiting Professor, Donostia International Physics Center, San Sebastian, Spain (2006-)
• Group Leader: National Institute for Materials Science (2011-)
• Fellow of the Institute of Physics, UK (2011-)
• Advisor in Materials Science Field, Vietnamese Academy of Science and Technology(2014-)
• MANA-PI: National Institute for Materials Science (2017-)
• Professor, Department of Condensed Matter Physics, Hokkaido University, Sapporo, Japan (2016-)

Fields of Research

Surface Nanophotonics, Metamaterials, Infrared Nano Technology

Overview

The role of Tadaaki Nagao in NIMS is to develop optical nanomaterials and devices for the application in sensing, energy harvesting from solar light and infrared thermal radiation. He run projects on wavelength-selective thermal radiation/absorption and their applications as principal investigator initiated by JST PRESTO and then CREST program and JSPS Kakenhi Kiban S program. Now running projects with several industrial collaborator as well as JAXA. He received his doctor degree in physics from Waseda University (Tokyo Japan) on electron energy loss spectroscopy and surface phonons of boron compounds. As an assistant professor at the physics department at the University of Tokyo (1994) and an associate professor at the Institute for Materials Research (IMR) at Tohoku University (2001) he established his research on the optoelectronics, spintronics, and photothermal properties of metallic nanostructures and their application in vibrational IR sensing and solar energy harvesting and heat blocking. From 2010 he is a Group Leader of National Institute for Materials Science (NIMS) and he runs his materials science project on solar photocatalysis, surface-enhanced vibrational spectroscopy, passive IR sensing, as well as light/heat and light/electricity conversion phenomena in metal and ceramic films and nanostructures. He was awarded as a fellow of the Institute of Physics (United Kingdom) in 2011, and currently also serving as a professor in physics course at Hokkaido University and hosts PhD students. During his student days, he was actively involved in rowing and cycling. He lived in Mexico City as a child, but speaks only a few words of Spanish. He is originally from Osaka and have also lived in Kokura, Sendai, Boston, and Hannover.

Recent Publications & Metrics

1. Phuoc Toan Tran, Thien Duc Ngo, Andrea Ruiz‐Perona, Hai Dang Ngo, Keisuke Watanabe, Hiroshi Harada, and Tadaaki Nagao, “Spectroscopic Infrared Photothermal Converters Using Uniaxially Oriented NiAl Superalloy Films with Metal-Insulator-Metal Strip Arrays,” Advanced Optical Materials, Vol.14, p e02912-1～12(2026).
2. Thien Duc Ngo, Toan Phuoc Tran, Hai Dang Ngo, and T. Nagao, “A Simultaneous Material-Device Optimization for Plasmonic Devices: A Combined Ab Initio and Electromagnetic Simulation for Photothermal Transducers,” Advanced Optical Materials, Vol.10 (23), p2201320-1～2201320-9 (2022).
3. Keisuke Watanabe, and Tadaaki Nagao, “Vibrational Mode-Selective Infrared Spectroscopy at the Monolayer Level Using Silicon Quasi-Bound States in the Continuum,” ACS Photonics, Vol.12(12), 6876～6883(2025).
4. David Hernández Pinilla, Andrea Ruiz Perona, Thien Duc Ngo, Ørjan Sele Handegård, Toan Phuoc Tran, Naoki Furuhata, and Tadaaki Nagao, “Spectrally Adjustable Narrowband Photonic Device Based on Heat‐Driven Amorphous‐to‐Crystal Transformation of Si,” Advanced Photonics Research, Vol.7, p2500054-1～9 (2025).
5. Andrea Ruiz-Perona, Toan Tran Phuoc, Adrija Das, Thien Duc Ngo, David Hernández-Pinilla, and Tadaaki Nagao, “Optoelectronic properties of CeB6 thin films fabricated by physical vapor deposition processes for near-infrared device applications,” Infrared Physics & Technology, Vol.150, p106026 (2025).
6. Thien Duc Ngo, Hai Dang Ngo, Toan Phuoc Tran, Hiroshi Harada, and Tadaaki Nagao, “Infrared thermophotonics: theoretical benchmarking of Ni–Al superalloys,” Advanced Photonics Research, Vol.6(4), p2400093-1～10 (2025).
7. Andrea Ruiz-Perona, Thien Duc Ngo, David Hernandez-Pinilla, Wataru Hayami, and Tadaaki Nagao, “Optimizing the optical response of uniaxial cerium hexaboride films for high-temperature plasmonic applications,” ACS Applied Electronic Materials, Vol.7(5), p2093～2101 (2025).
8. Chih-Chung Wang, Jia-Han Li, and Tadaaki Nagao, “A tungsten-based solar absorber with a strip-combined starfish structure with high photothermal conversion efficiency and low radiative heat loss,” Physical Chemistry Chemical Physics, Vol.27(48), p 25868-25875 (2025).
9. K. Chen, T. D. Dao, T. D. Ngo, H. D. Ngo, A. Tamanai, S. Ishii, X. Li, H. Misawa, and T. Nagao, “Enhanced photocurrent generation from indium–tin-oxide/Fe2TiO5 hybrid nanocone arrays,” Nano Energy 76, 104965 (2020).
10. Yokoyama, T. Dao T.D., Chen, K., Ishii, S. , Sugavaneshwar, R.P. , Kitajima, M., and Nagao, T., “Spectrally Selective Mid‐Infrared Thermal Emission from Molybdenum Plasmonic Metamaterial Operated up to 1000° C,” Advanced Optical Materials 4 (12), 1987-1992, 2016.
11. Chen, K., Dao, T.D., and Nagao, T., "Tunable Nanoantennas for Surface Enhanced Infrared Absorption Spectroscopy by Colloidal Lithography and Post-Fabrication Etching," Sci Rep. 7, 44069, 2017.
12. Chen, K., Dao, T. D., Ishii, S., Aono, M., and Nagao, T., “Infrared aluminum metamaterial perfect absorbers for plasmon-enhanced infrared spectroscopy,” Advanced Functional Materials 42, 6637-6643, 2015.
13. Dao, T.D., Chen, K., Ishii, S., Ohi, A., Nabatame, T., Kitajima, M., and Nagao, T., “Infrared perfect absorbers fabricated by colloidal mask etching of Al-Al2O3-Al trilayers,” ACS Photonics 2, 964-970, 2015.
14. Dao, T.D., Ishii, S., Yokoyama, T., Sawada, T., Sugavaneshwar, R.P., Chen, K., and Nagao, T., “Hole Array Perfect Absorbers for Spectrally Selective Midwavelength Infrared Pyroelectric Detectors,” ACS Photonics 3 (7), 1271-1278, 2016.

In total he has published 349 publications over 12,517 total citation number recorded in Publons, with H-index of 61.

Official Links

• https://www.nims.go.jp/group/nsp/
• https://scholar.google.com/citations?user=MA9A-14AAAAJ&hl=ja
• https://www.researchgate.net/profile/Tadaaki-Nagao
• https://researchmap.jp/nagaotadaaki

Personal Links

• https://www.linkedin.com/in/tadaaki-nagao-1321602a/
• https://www.waseda.jp/inst/weekly/circleguide/detail/?id=3514
• https://activewcc.web.fc2.com/