IWASA, Takeshi

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IWASA, Takeshi
Assistant Professor
Faculty of Science, Hokkaido University
TAKETSUGU, Tetsuya Group
Principal Investigator
Faculty Members
Postdoctoral Fellows
Research Collaborators
  • KANOU, Naoko

About the Research

Research Theme

Interaction between localized light and molecules and Excited states


Near-field spectroscopy and dynamics, Optical response theory, Cluster compounds

Representative Research Achievements

  • Single-molecule resonance Raman effect in a plasmonic nanocavity
    R. B. Jaculbia, H. Imada*, K. Miwa, T. Iwasa, M. Takenaka, B. Yang, E. Kazuma, N. Hayazawa*, T. Taketsugu, Y. Kim*, Nat. Nanotechnol., 2020, 15, 105-110
    DOI: 10.1038/s41565-019-0614-8
  • Combined Automated Reaction Pathway Searches and Sparse Modeling Analysis for Catalytic Properties of Lowest Energy Twins of Cu13
    T. Iwasa*, T. Sato, M. Takagi, M. Gao, A. Lyalin, M. Kobayashi, K. Shimizu, S. Maeda, T. Taketsugu*, J. Phys. Chem. A, 2019, 123, 210-217
    DOI: 10.1021/acs.jpca.8b08868
  • First principles calculations toward understanding SERS of 2,2′-bipyridyl adsorbed on Au, Ag and Au-Ag alloy
    M. Takenaka, Y. Hashimoto, T. Iwasa*, T. Taketsugu, G. Seniutinas, A. Balčytis, S. Juodkazise, Y. Nishijima*, J. Comput. Chem., 2019, 40, 925-932
    DOI: 10.1002/jcc.25603
  • Time-Dependent Density Functional Theory Study on Higher Low-Lying Excited States of Au25(SR)18
    M. Ebina, T. Iwasa*, Y. Harabuchi, T. Taketsugu*, J. Phys. Chem. C, 2018, 122, 4097-4104
    DOI: 10.1021/acs.jpcc.7b12723
  • Generalized theoretical method for the interaction between arbitrary nonuniform electric field and molecular vibrations: Toward near-field infrared spectroscopy and microscopy
    T. Iwasa*, M. Takenaka, and T. Taketsugu, J. Chem. Phys., 2016,  144, 124116 [8 pages]
    DOI: 10.1063/1.4944937

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