Kyoto University   Visiting Associate Professor

2022.4 - 2024.3

The Graduate University for Advanced Studies   Associate Professor

2021.4

Institute for Molecular Science   Center for Mesoscopic Sciences   Associate Professor

2020.4

Hokkaido University   Visiting Associate Professor

2020.4

Fritz Haber Institute of the Max Planck Society   Physical Chemistry   Research Group Leader

2013.4

Fritz Haber Institute of the Max Planck Society   Physical Chemistry   Research fellow of Japan Society for the Promotion of Science (Oversea Research Fellowship)

2011.4 - 2013.3

Kyoto University   Department of Chemistry   Research fellow of Japan Society for the Promotion of Science (Research Fellowship for Young Scientists)

2008.4 - 2011.3

Quantitative comparison of local field enhancement from tip-apex and plasmonic nanofocusing excitation via plasmon-assisted field emission resonances Invited Reviewed

Chenfang Lin, Jie Li, Guoao Li, Wenjie Luo, Shuyi Liu, Adnan Hammud, Yang Xia, Anlian Pan, Martin Wolf, Melanie Müller, Takashi Kumagai

Nanoscale   17 ( 12 )   7164 - 7172   2025.2 （   ISSN:2040-3364   eISSN:2040-3372 ）

Plasmonic Light Emission by Inelastic Charge Transport in Ultrathin Zinc Oxide/Metal Heterostructures Reviewed

Henrik Wiedenhaupt, Fabian Schulz, Luis E. Parra López, Adnan Hammud, Youngwook Park, Akitoshi Shiotari, Takashi Kumagai, Martin Wolf, Melanie Müller

Nano Letters   25 ( 7 )   2870 - 2877   2025.2 （   ISSN:1530-6984   eISSN:1530-6992 ）

Ultrafast Nano-Imaging of Spatially Modulated Many-Body Dynamics in CVD-Grown Monolayer WS₂ Reviewed

Yu Wang, Jun Nishida, Keiichi Nakamoto, Xu Yang, Yoshiki Sakuma, Wenjin Zhang, Takahiko Endo, Yasumitsu Miyata, Takashi Kumagai

ACS Photonics   12 ( 1 )   207 - 218   2024.12 （   ISSN:2330-4022   eISSN:2330-4022 ）

Atomic-precision control of plasmon-induced single-molecule switching in a metal–semiconductor nanojunction Reviewed

Youngwook Park, Ikutaro Hamada, Adnan Hammud, Takashi Kumagai, Martin Wolf, Akitoshi Shiotari

Nature Communications   15 ( 1 )   2024.8 （     eISSN:2041-1723 ）

Single-molecule tip-enhanced Raman spectroscopy of C₆₀ on the Si(111)-(7 × 7) surface Reviewed

Borja Cirera, Shuyi Liu, Youngwook Park, Ikutaro Hamada, Martin Wolf, Akitoshi Shiotari, Takashi Kumagai

Physical Chemistry Chemical Physics   26 ( 32 )   21325 - 21331   2024.7 （   ISSN:1463-9076   eISSN:1463-9084 ）

Sub-Tip-Radius Near-Field Interactions in Nano-FTIR Vibrational Spectroscopy on Single Proteins Reviewed

Jun Nishida, Akihiro Otomo, Takanori Koitaya, Akitoshi Shiotari, Taketoshi Minato, RYOTA IINO, Takashi Kumagai

Nano Letters   24 ( 3 )   836 - 843   2024.1 （   ISSN:1530-6984 ）

Continuous-Wave Multiphoton-Induced Electron Transfer in Tunnel Junctions Driven by Intense Plasmonic Fields Reviewed

Chenfang Lin, Faruk Krecinic, Hiroko Yoshino, Adnan Hammud, Anlian Pan, Martin Wolf, Melanie Müller, Takashi Kumagai

ACS Photonics   10 ( 10 )   3637 - 3646   2023.10 （   ISSN:2330-4022   eISSN:2330-4022 ）

Metastability in the Insulator–Metal Transition for Individual Vanadium Dioxide Nanoparticles Reviewed

Kazutaka Nishikawa, Jun Nishida, Masamichi Yoshimura, Keiichi Nakamoto, Takashi Kumagai, Yoshihide Watanabe

The Journal of Physical Chemistry C   127 ( 33 )   16485 - 16495   2023.8 （   ISSN:1932-7447   eISSN:1932-7455 ）

Inelastic Light Scattering in the Vicinity of a Single-Atom Quantum Point Contact in a Plasmonic Picocavity Reviewed

Shuyi Liu, Franco P. Bonafe, Heiko Appel, Angel Rubio, Martin Wolf, Takashi Kumagai

ACS Nano   17 ( 11 )   10172 - 10180   2023.5 （   ISSN:1936-0851   eISSN:1936-086X ）

Joule Heating in Single-Molecule Point Contacts Studied by Tip-Enhanced Raman Spectroscopy Reviewed

Borja Cirera, Martin Wolf, Takashi Kumagai

ACS Nano   16 ( 10 )   16443 - 16451   2022.10 （   ISSN:1936-0851 ）

Nanoscale coherent phonon spectroscopy Reviewed

Shuyi Liu, Adnan Hammud, Ikutaro Hamada, Martin Wolf, Melanie Müller, Takashi Kumagai

Science Advances   8 ( 42 )   2022.10 （   ISSN:2375-2548   eISSN:2375-2548 ）

Femtosecond Thermal and Nonthermal Hot Electron Tunneling Inside a Photoexcited Tunnel Junction Reviewed

Natalia Mart{\'{\i } }n, Saban{\'{e } }s, Faruk Krecinic, Takashi Kumagai, Fabian Schulz, Martin Wolf, Melanie Müller

ACS Nano   2022.8 （   ISSN:1936-0851   eISSN:1936-086X ）

Sub-molecular diagnostics of coherent energy transfer Invited

Takashi Kumagai

Nature Nanotechnology   17 ( 7 )   674 - 675   2022.7 （   ISSN:1748-3387   eISSN:1748-3395 ）

Nanoscale Heating of an Ultrathin Oxide Film Studied by Tip-Enhanced Raman Spectroscopy Reviewed

Shuyi Liu, Martin Wolf, Takashi Kumagai

Physical Review Letters   128 ( 20 )   206803   2022.5 （   ISSN:0031-9007   eISSN:1079-7114 ）

Charge Transfer-Mediated Dramatic Enhancement of Raman Scattering upon Molecular Point Contact Formation Reviewed

Borja Cirera, Yair Litman, Chenfang Lin, Alaa Akkoush, Adnan Hammud, Martin Wolf, Mariana Rossi, Takashi Kumagai

Nano Letters   2022.2 （   ISSN:1530-6984 ）

Anti-Stokes Light Scattering Mediated by Electron Transfer Across a Biased Plasmonic Nanojunction Reviewed

Shuyi Liu, Adnan Hammud, Martin Wolf, Takashi Kumagai

ACS Photonics   8 ( 9 )   2610 - 2617   2021.8 （   ISSN:2330-4022   eISSN:2330-4022 ）

Atomic Point Contact Raman Spectroscopy of a Si(111)-7 × 7 Surface Reviewed

Shuyi Liu, Adnan Hammud, Martin Wolf, Takashi Kumagai

Nano Letters   21 ( 9 )   4057 - 4061   2021.5 （   ISSN:1530-6984   eISSN:1530-6992 ）

Sub-molecular photoluminescence Invited

Kumagai, T.

Nature Photonics   14 ( 11 )   653 - 655   2020.11 （   ISSN:1749-4893   eISSN:1749-4893 ）

Turn on Nanolight in a Tiny Gap Invited

Takashi Kumagai

Vakuum in Forschung und Praxis   32 ( 5 )   33 - 37   2020.10 （   ISSN:0947-076X   eISSN:1522-2454 ）

Dramatic Enhancement of Tip-Enhanced Raman Scattering Mediated by Atomic Point Contact Formation Reviewed

Shuyi Liu, Borja Cirera, Yang Sun, Ikutaro Hamada, Melanie Müller, Adnan Hammud, Martin Wolf, Takashi Kumagai

Nano Letters   20 ( 8 )   5879 - 5884   2020.7 （   ISSN:1530-6984   eISSN:1530-6992 ）

Turn on Nanolight in a Tiny Gap: Photophysical and photochemical phenomena are directly observable using low-temperature scanning tunneling microscopy combined with plasmonics Invited

Kumagai, T.

Vakuum in Forschung und Praxis   32 ( 5 )   2020 （   ISSN:1522-2454 ）

Real-space observation of far- and near-field-induced photolysis of molecular oxygen on an Ag(110) surface by visible light Reviewed

Chenfang Lin, Kei Ikeda, Yoshihito Shiota, Kazunari Yoshizawa, Takashi Kumagai

The Journal of Chemical Physics   151 ( 14 )   144705 - 144705   2019.10 （   ISSN:0021-9606   eISSN:1089-7690 ）

Resolving the Correlation between Tip-Enhanced Resonance Raman Scattering and Local Electronic States with 1 nm Resolution Reviewed

Shuyi Liu, Melanie Mueller, Yang Sun, Ikutaro Hamada, Adnan Hammud, Martin Wolf, Takashi Kumagai

NANO LETTERS   19 ( 8 )   5725 - 5731   2019.8 （   ISSN:1530-6984   eISSN:1530-6992 ）

Near-Field Manipulation in a Scanning Tunneling Microscope Junction with Plasmonic Fabry-Pérot Tips Reviewed

Takashi Kumagai

Nano Letters   2019.5 （   ISSN:1530-6984 ）

Near-Field Spectral Response of Optically Excited Scanning Tunneling Microscope Junctions Probed by Single-Molecule Action Spectroscopy Reviewed

Takashi Kumagai

The Journal of Physical Chemistry Letters   10 ( 9 )   2068 - 2074   2019.5 （   ISSN:1948-7185 ）

Elucidating the Nuclear Quantum Dynamics of Intramolecular Double Hydrogen Transfer in Porphycene Reviewed

Takashi Kumagai

Journal of the American Chemical Society   141 ( 6 )   2526 - 2534   2019.2 （   ISSN:0002-7863 ）

Real-Space Observation of Quantum Tunneling by a Carbon Atom: Flipping Reaction of Formaldehyde on Cu(110) Reviewed

Takashi Kumagai

The Journal of Physical Chemistry Letters   10 ( 3 )   645 - 649   2019.2 （   ISSN:1948-7185 ）

Plasmon-Assisted Resonant Electron Tunneling in a Scanning Tunneling Microscope Junction Reviewed

Takashi Kumagai

Physical Review Letters   121 ( 22 )   226802-1 - 226802-6   2018.11

Direct observation of van der Waals two-dimensional crystal and small clusters of methane on copper surfaces Reviewed

Takashi Kumagai, Janina N. Ladenthin, Ikutaro Hamada

PHYSICAL REVIEW MATERIALS   2 ( 9 )   093403-1 - 093403-6   2018.9 （   ISSN:2475-9953 ）

How Structural Defects Affect the Mechanical and Electrical Properties of Single Molecular Wires Reviewed

Takashi Kumagai

Physical Review Letters   121 ( 4 )   047701-1 - 047701-6   2018.7

Enhanced resolution imaging of ultrathin ZnO layers on Ag(111) by multiple hydrogen molecules in a scanning tunneling microscope junction Reviewed

Shuyi Liu, Akitoshi Shiotari, Delroy Baugh, Martin Wolf, Takashi Kumagai

Physical Review B   97 ( 19 )   195417-1 - 195417-6   2018.5 （   ISSN:2469-9969 ）

Near-Field Enhanced Photochemistry of Single Molecules in a Scanning Tunneling Microscope Junction Reviewed

Hannes Böckmann, Sylwester Gawinkowski, Jacek Waluk, Markus B. Raschke, Martin Wolf, Takashi Kumagai

Nano Letters   18 ( 1 )   152 - 157   2018.1 （   ISSN:1530-6992 ）

Anharmonicity in a double hydrogen transfer reaction studied in a single porphycene molecule on a Cu(110) surface Reviewed

S. Liu, D. Baugh, K. Motobayashi, X. Zhao, S. V. Levchenko, S. Gawinkowski, J. Waluk, L. Grill, M. Persson, T. Kumagai

Physical Chemistry Chemical Physics   20 ( 17 )   12112 - 12119   2018 （   ISSN:1463-9076 ）

Direct observation of hydrogen-bond exchange reaction in a water dimer using low-temperature scanning tunneling microscopy Reviewed

Kumagai, T., Okuyama, H.

Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry   2018

Direct observation of hydrogen-atom relay reactions using low-temperature scanning tunneling microscopy Reviewed

Kumagai, T., Okuyama, H.

Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry   2018

Quantum tunneling in real space: Tautomerization of single porphycene molecules on the (111) surface of Cu, Ag, and Au Reviewed

Takashi Kumagai

Journal of Chemical Physics   148 ( 10 )   102330-1 - 102330-9   2017.12

Direct Observation of Double Hydrogen Transfer via Quantum Tunneling in a Single Porphycene Molecule on a Ag(110) Surface Reviewed

Matthias Koch, Mark Pagan, Mats Persson, Sylwester Gawinkowski, Jacek Waluk, Takashi Kumagai

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   139 ( 36 )   12681 - 12687   2017.9 （   ISSN:0002-7863 ）

Spectroscopic and microscopic investigations of tautomerization in porphycenes: condensed phases, supersonic jets, and single molecule studies Reviewed

P. Fita, L. Grill, A. Listkowski, H. Piwonski, S. Gawinkowski, M. Pszona, J. Sepiol, E. Mengesha, T. Kumagai, J. Waluk

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   19 ( 7 )   4921 - 4937   2017.2 （   ISSN:1463-9076   eISSN:1463-9084 ）

Light-Induced Translation of Motorized Molecules on a Surface Reviewed

Alex Saywell, Anne Bakker, Johannes Mielke, Takashi Kumagai, Martin Wolf, Victor Garcia-Lopez, Pinn-Tsong Chiang, James M. Tour, Leonhard Grill

ACS NANO   10 ( 12 )   10945 - 10952   2016.12 （   ISSN:1936-0851   eISSN:1936-086X ）

Local electronic structure, work function, and line defect dynamics of ultrathin epitaxial ZnO layers on a Ag(111) surface Invited Reviewed

T. Kumagai, S. Liu, A. Shiotari, D. Baugh, S. Shaikhutdinov, M. Wolf

JOURNAL OF PHYSICS-CONDENSED MATTER   28 ( 49 )   11 - 20   2016.12 （   ISSN:0953-8984   eISSN:1361-648X ）

Force-induced tautomerization in a single molecule Reviewed

Janina N. Ladenthin, Thomas Frederiksen, Mats Persson, John C. Sharp, Sylwester Gawinkowski, Jacek Waluk, Takashi Kumagai

NATURE CHEMISTRY   8 ( 10 )   935 - 940   2016.10 （   ISSN:1755-4330   eISSN:1755-4349 ）

Direct Observation of Photoinduced Tautomerization in Single Molecules at a Metal Surface Reviewed

H. Boeckmann, S. Liu, J. Mielke, S. Gawinkowski, J. Waluk, L. Grill, M. Wolf, T. Kumagai

NANO LETTERS   16 ( 2 )   1034 - 1041   2016.2 （   ISSN:1530-6984   eISSN:1530-6992 ）

Direct observation and control of hydrogen-bond dynamics using low-temperature scanning tunneling microscopy Invited Reviewed

Takashi Kumagai

PROGRESS IN SURFACE SCIENCE   90 ( 3 )   239 - 291   2015.8 （   ISSN:0079-6816 ）

Hot Carrier-Induced Tautomerization within a Single Porphycene Molecule on Cu(111) Reviewed

Janina N. Ladenthin, Leonhard Grill, Sylwester Gawinkowski, Shuyi Liu, Jacek Waluk, Takashi Kumagai

ACS NANO   9 ( 7 )   7287 - 7295   2015.7 （   ISSN:1936-0851   eISSN:1936-086X ）

Tip-Enhanced Raman Spectroscopy of Graphene Nanoribbons on Au(111) Reviewed

Shiotari Akitoshi, Kumagai Takashi, Wolf Martin

Abstract of annual meeting of the Surface Science of Japan   35   249 - 249   2015

Local Characterization of Ultrathin ZnO Layers on Ag(111) by Scanning Tunneling Microscopy and Atomic Force Microscopy Reviewed

Akitoshi Shiotari, Bo Hong Liu, Simon Jaekel, Leonhard Grill, Shamil Shaikhutdinov, Hans-Joachim Freund, Martin Wolf, Takashi Kumagai

JOURNAL OF PHYSICAL CHEMISTRY C   118 ( 47 )   27428 - 27435   2014.11 （   ISSN:1932-7447 ）

Convergent and divergent two-dimensional coordination networks formed through substrate-activated or quenched alkynyl ligation Reviewed

Jan Cechal, Christopher S. Kley, Takashi Kumagai, Frank Schramm, Mario Ruben, Sebastian Stepanow, Klaus Kern

CHEMICAL COMMUNICATIONS   50 ( 69 )   9973 - 9976   2014.9 （   ISSN:1359-7345   eISSN:1364-548X ）

Tip-Enhanced Raman Spectroscopy of Graphene Nanoribbons on Au(111) Reviewed

Akitoshi Shiotari, Takashi Kumagai, Martin Wolf

JOURNAL OF PHYSICAL CHEMISTRY C   118 ( 22 )   11806 - 11812   2014.6 （   ISSN:1932-7447 ）

Controlling intramolecular hydrogen transfer in a porphycene molecule with single atoms or molecules located nearby Reviewed

Takashi Kumagai, Felix Hanke, Sylwester Gawinkowski, John Sharp, Konstantinos Kotsis, Jacek Waluk, Mats Persson, Leonhard Grill

NATURE CHEMISTRY   6 ( 1 )   41 - 46   2014.1 （   ISSN:1755-4330   eISSN:1755-4349 ）

Thermally and Vibrationally Induced Tautomerization of Single Porphycene Molecules on a Cu(110) Surface Reviewed

Takashi Kumagai, Felix Hanke, Sylwester Gawinkowski, John Sharp, Konstantinos Kotsis, Jacek Waluk, Mats Persson, Leonhard Grill

PHYSICAL REVIEW LETTERS   111 ( 24 )   246101   2013.12 （   ISSN:0031-9007   eISSN:1079-7114 ）

Functionalization of Open Two-Dimensional Metal-Organic Templates through the Selective Incorporation of Metal Atoms Reviewed

Jan Cechal, Christopher S. Kley, Takashi Kumagai, Frank Schramm, Mario Ruben, Sebastian Stepanow, Klaus Kern

JOURNAL OF PHYSICAL CHEMISTRY C   117 ( 17 )   8871 - 8877   2013.5 （   ISSN:1932-7447 ）

Nature of hydrogen bonding in hydroxyl groups on a metal surface Reviewed

Ikutaro Hamada, Takashi Kumagai, Akitoshi Shiotari, Hiroshi Okuyama, Shinichiro Hatta, Tetsuya Aruga

Physical Review B - Condensed Matter and Materials Physics   86 ( 7 )   2012.8 （   ISSN:1098-0121 ）

Nature of hydrogen bonding in hydroxyl groups on a metal surface Reviewed

Ikutaro Hamada, Takashi Kumagai, Akitoshi Shiotari, Hiroshi Okuyama, Shinichiro Hatta, Tetsuya Aruga

PHYSICAL REVIEW B   86 ( 7 )   075432   2012.8 （   ISSN:2469-9950   eISSN:2469-9969 ）

Modifying current-voltage characteristics of a single molecule junction by isotope substitution: OHOD dimer on Cu(110) Reviewed

H. Okuyama, A. Shiotari, T. Kumagai, S. Hatta, T. Aruga, Y. Ootsuka, M. Paulsson, H. Ueba

PHYSICAL REVIEW B   85 ( 20 )   205424   2012.5 （   ISSN:1098-0121 ）

Highly Adaptable Two-Dimensional Metal-Organic Coordination Networks on Metal Surfaces Reviewed

Christopher S. Kley, Jan Cechal, Takashi Kumagai, Frank Schramm, Mario Ruben, Sebastian Stepanow, Klaus Kern

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   134 ( 14 )   6072 - 6075   2012.4 （   ISSN:0002-7863 ）

H-atom relay reactions in real space Reviewed

T. Kumagai, A. Shiotari, H. Okuyama, S. Hatta, T. Aruga, I. Hamada, T. Frederiksen, H. Ueba

NATURE MATERIALS   11 ( 2 )   167 - 172   2012.2 （   ISSN:1476-1122 ）

Visualization of hydrogen-bond dynamics Invited Reviewed

Takashi Kumagai

Springer   2012.1 （ ISBN:9784431541561 ）

Water clusters on Cu(110): Chain versus cyclic structures Reviewed

T. Kumagai, H. Okuyama, S. Hatta, T. Aruga, I. Hamada

JOURNAL OF CHEMICAL PHYSICS   134 ( 2 )   024703   2011.1 （   ISSN:0021-9606   eISSN:1089-7690 ）

Symmetric hydrogen bond in a water-hydroxyl complex on Cu(110) Reviewed

T. Kumagai, M. Kaizu, H. Okuyama, S. Hatta, T. Aruga, I. Hamada, Y. Morikawa

PHYSICAL REVIEW B   81 ( 4 )   045402   2010.1 （   ISSN:1098-0121   eISSN:1550-235X ）

A direct numerical simulation method for complex modulus of particle dispersions Reviewed

Iwashita, T., Kumagai, T., Yamamoto, R.

European Physical Journal E   32 ( 4 )   2010 （   ISSN:1292-8941 ）

水の少数クラスターにおける水素結合交換の直接観測 Reviewed

熊谷 崇, 海津 政久, 奥山 弘, 八田 振一郎, 有賀 哲也, 濱田 幾太郎, 森川 良忠

表面科学   30 ( 8 )   448 - 453   2009.8

Real-space observation of hydrogen-bond exchange in water clusters Reviewed

( 14 )   36 - 42   2009.6 （   ISSN:1348-317X ）

Tunneling dynamics of a hydroxyl group adsorbed on Cu(110) Reviewed

T. Kumagai, M. Kaizu, H. Okuyama, S. Hatta, T. Aruga, I. Hamada, Y. Morikawa

PHYSICAL REVIEW B   79 ( 3 )   035423   2009.1 （   ISSN:1098-0121   eISSN:1550-235X ）

Water monomer and dimer on Cu(110) studied using a scanning tunneling microscope Reviewed

T. Kumagai, M. Kaizu, H. Okuyama, S. Hatta, T. Aruga, I. Hamada, Y. Morikawa

e-Journal of Surface Science and Nanotechnology   6   296 - 300   2008.12 （   ISSN:1348-0391 ）

Cu(110)表面における水単分子の移動と反応 Reviewed

熊谷 崇, 八田 振一郎, 奥山 弘, 有賀 哲也

表面科学   29 ( 8 )   484 - 488   2008.8

Hopping motion and reaction of a single water molecule on Cu (110) Reviewed

KUMAGAI Takashi, HATTA Shinichiro, OKUYAMA Hiroshi, ARUGA Tetsuya

表面科学   29 ( 8 )   484 - 488   2008.8 （   ISSN:0388-5321 ）

Direct observation of hydrogen-bond exchange within a single water dimer Reviewed

T. Kumagai, M. Kaizu, S. Hatta, H. Okuyama, T. Aruga, I. Hamada, Y. Morikawa

PHYSICAL REVIEW LETTERS   100 ( 16 )   166101   2008.4 （   ISSN:0031-9007 ）

Adsorbed states and scanning tunneling microscopy induced migration of acetylene on Cu(110) Reviewed

T. Kumagai, S. Hatta, H. Okuyama, T. Aruga

JOURNAL OF CHEMICAL PHYSICS   126 ( 23 )   234708   2007.6 （   ISSN:0021-9606 ）

Intra-arterial chemotherapy for malignant tumors of head and neck region using three types of modified injection method Reviewed

Kumagai, T., Takeda, N., Fukase, S., Koshu, H., Inoue, A., Ibuchi, Y., Yoneoka, Y.

Interventional Neuroradiology   9 ( SUPPL. 1 )   2003 （   ISSN:1123-9344 ）

25aYH-12 Direct Observation of Proton Transfer on Metal Surface

Kumagai T., Okuyama H., Hatta S., Aruga T., Hamada I., Morikawa Y.

Meeting abstracts of the Physical Society of Japan   64 ( 2 )   801 - 801   2009.8 （   ISSN:1342-8349 ）

27aRD-7 Control and Visualization of Single-Molecule Hydration

Kumagai T., Kaizu M., Hatta S., Okuyama H., Aruga T., Hamada I., Morikawa Y.

Meeting abstracts of the Physical Society of Japan   64 ( 1 )   869 - 869   2009.3 （   ISSN:1342-8349 ）

21aXB-3 Tunneling Dynamics of Single-Molecule Tautomerization

Kumagai T., Kaizu M., Hatta S., Okuyama H., Aruga T., Hamada I., Morikawa Y.

Meeting abstracts of the Physical Society of Japan   63 ( 2 )   811 - 811   2008.8 （   ISSN:1342-8349 ）

23aRJ-6 Observation of Hydrogen Bond Rearrangement within a Water Dimer

Kumagai T., Hatta S., Okuyama H., Aruga T., Hamada I., Morikawa Y.

Meeting abstracts of the Physical Society of Japan   63 ( 1 )   856 - 856   2008.2 （   ISSN:1342-8349 ）

21aXJ-5 STM observation of oxygen adsorption on the Cu(001) surface (2)

Kumagai T., Hatta S., Okuyama H., Aruga T.

Meeting abstracts of the Physical Society of Japan   62 ( 2 )   906 - 906   2007.8 （   ISSN:1342-8349 ）

19aTG-2 Single-molecule study of acetylene adsorbed on Cu(110)

Kumagai T., Hatta S., Okuyama H., Aruga T.

Meeting abstracts of the Physical Society of Japan   62 ( 1 )   883 - 883   2007.2 （   ISSN:1342-8349 ）

Ultrafast Nano-Spectroscopy of Photo-Induced Dynamics in Low-Dimensional Materials Invited

Takashi Kumagai

DPG Spring Meeting  2025.3 

Nanomaterial Characterization Using Infrared Nano-Spectroscopy Invited

Takashi Kumagai

2025.1 

Tip-Enhanced Vibrational Spectroscopy for Single Atoms & Molecules Invited

Takashi Kumagai

Sino-German Workshop on Surface Science of Complex Systems  2025.1 

Single-Atom/Molecule Science Explored by Tip-Enhanced Raman Spectroscopy Invited

Takashi Kumagai

2024.12 

Nanomaterial Characterization Using Infrared Nano-Spectroscopy Invited

Takashi Kumagai

Joint FHI-ICAT Symposium  2024.11 

Nanomaterial Characterization Using Infrared Nano-Spectroscopy Invited

Takashi Kumagai

ISSP International Workshop "Materials Science of Solids and Surfaces using Radiation Field Controlled in Time/Space Domain"  2024.10 

Single-Molecule Raman Spectroscopy in Plasmonic “Picocavity” Invited

Takashi Kumagai

2024.10 

Tip-Enhanced Raman Spectroscopy in STM picocavities Invited

Takashi Kumagai

Light-Matter Interaction at Nanoscale 2024  2024.9 

Visualizing local exciton formation and many-body dynamics in single-walled carbon nanotubes Invited

Takashi Kumagai

The 67th Fullerenes-Nanotubes-Graphene General Symposium  2024.9 

Nano- & Atomic-Scale Spectroscopy Using Tip-Enhanced Near-Field Optics Invited

Takashi Kumagai

2024.7 

Direct Observation of Insulator-Metal Transition of Individual VO2 Nanoparticles

Jun Nishida, Kazutaka Nishikawa, Yoshihide Watanabe, Takashi Kumagai

2023.9 

Atomic-Scale Optical Spectroscopy at Surfaces Invited

Takashi Kumagai

SPIE Optics and Photonics 2023  2023.8 

Sub-tip-radius near-field interactions in nano-FTIR vibrational spectroscopy on single protein particles

Jun Nishida, Akihiro Otomo, Ryota Iino, Takashi Kumagai

SPIE Optics and Photonics 2023  2023.8 

Atomic-Scale Optical Spectroscopy at Surfaces Invited

Takashi Kumagai

NanospecFY2022mini  2023.3 

Atomic-Scale Optical Spectroscopy at Surfaces Invited

Takashi Kumagai

14th International Symposium on Atomic Level Characterizations for New Materials and Devices '22  2022.10 

Atomic-Scale Optical Spectroscopy at Surfaces Invited

Takashi Kumagai

IMS-ICAT Joint Symposium of Surface Science for Catalysis  2022.10 

Single protein vibrational spectroscopy by high-order demodulated infrared near-field spectroscopy

Jun Nishida, Akihiro Otomo, Ryota Iino, Takashi Kumagai

2022.9 

Atomic-Scale Optical Spectroscopy at Surfaces Invited

Takashi Kumagai

The 83rd JSAP Autumn Meeting 2022  2022.9 

Tip-enhanced Raman spectroscopy of a single C60 molecule adsorbed on the Si(111)-7×7 reconstruction surface

Shuyi Liu, Martin Wolf, Akitoshi Shiotari, Takashi Kumagai

2022.9 

Atomic-Scale Optical Spectroscopy at Surfaces Invited

Takashi Kumagai

DPG Meeting of the Condensed Matter Section  2022.9 

Direct observation of plasmon-enhanced single-molecule tautomerization Invited

Takashi Kumagai

Pacifichem 2021  2021.12 

Dramatic enhancement of tip-enhanced Raman scattering mediated by atomic point contact formation

Shuyi Liu, Borja Cirera, Chenfang Lin, Yang Sun, Ikutaro Hamada, Adnan Hammud, Martin Wolf, Takashi Kumagai

Pacifchem 2021  2021.12 

Optical Nanoscopy - Emerging Technologies and Applications to Physical Chemistry Invited

Takashi Kumagai, Jun Nishida

NanoLSI Open Seminar  2021.12 

原子スケールの空間極限における極微分光 Invited

熊谷 崇

東海コンファレンス2021 in 愛知〜 超精密分子イメージングの最前線〜  2021.12 

Atomic-Scale Optical Spectroscopy in Plasmonic Scanning Tunneling Microscope Junctions Invited

Takashi Kumagai

The 9th International Symposium on Surface Science  2021.12 

Towards Atomic-Scale Optical Spectroscopy Invited

Takashi Kumagai

2021 AVS Taiwan Chapter  2021.1 

Optical Spectroscopy with Atomic-Scale Light: Perspective for Application in Catalysis Science Invited

Takashi Kumagai

2020.12 

Tip-enhanced resonance Raman spectroscopy: A novel tool for atomic-scale chemical analysis of surfaces Invited

Takashi Kumagai

27th International Colloquium on Scanning Probe Microscopy  2019.12 

Atomic-Scale Light–Matter Interaction in Plasmonic STM Junctions Invited

Takashi Kumagai

20th Meeting of the Fachbeirat of the Fritz-Haber-Institute  2019.11 

Tip-enhanced resonance Raman spectroscopy: A novel tool for atomic-scale chemical analysis of surfaces Invited

Takashi Kumagai

The 81st Okazaki Conference "Forefront of Measurement Technologies for Surface Chemistry and Physics in Real-Space, k-Space, and Real-Time"  2019.11 

Near-field physics and chemistry in plasmonic STM junctions Invited

Takashi Kumagai

704. WEH Seminar "Exploring the limits of nanoscience with scanning probe methods"  2019.10 

Plasmon-Induced Photophysics and Photochemistry in Nanocavity Invited

Takashi Kumagai

9th International Workshop on Surface Physics  2019.6 

Physical Chemistry with Single Molecules—Hydrogen-Transfer Dynamics Studied by Scanning Probe Microscopy Invited

Takashi Kumagai

Seminar at Nagoya University  2019.1 

Nanoscale Surface Chemistry Studied by SPM – Single-Molecule Tautomerization and Near-Field Chemistry/Physics Invited

Takashi Kumagai

Seminar at Tsukuba University  2019.1 

Physical Chemistry with Single Molecules Invited

Takashi Kumagai

Seminar at Tokyo University of Science  2019.1 

Nanoscale Surface Chemistry Studied by SPM – Single-Molecule Tautomerization and Near-Field Chemistry/Physics Invited

Takashi Kumagai

Semina at Osaka University (Toyonaka)  2019.1 

Nanoscale Surface Chemistry Studied by SPM – Single-Molecule Tautomerization and Near-Field Chemistry/Physics Invited

Takashi Kumagai

Seminar at Osaka University (Suita)  2019.1 

Nanoscale Surface Chemistry Studied by SPM – Single-Molecule Tautomerization and Near-Field Chemistry/Physics Invited

Takashi Kumagai

RIKEN Seminar  2018.12 

Nanoscale Surface Chemistry Studied by SPM Invited

Takashi Kumagai

Seminar at Tokyo Institute of Technology  2018.12 

Nanoscale Surface Chemistry Studied by SPM – Single-Molecule Tautomerization and Near-Field Induced Chemistry/Physics Invited

Takashi Kumagai

Seminar at Max-Planck Institute for Solid State Physics  2018.11 

Physical Chemistry with Single Molecules - Hydrogen Transfer Reactions in Real Space Invited

Takashi Kumagai

Seminar at Polish Academy of Sciences  2018.11 

Physical Chemistry with Single Molecules - Hydrogen Transfer Reactions in Real Space Invited

Takashi Kumagai

CPT section meeting  2018.10 

Physical Chemistry with Single Molecules Studied by Scanning Probe Microscopy Invited

Takashi Kumagai

Seminar at Potsdam University  2018.6 

Real-Space Study of Hydrogen Transfer Reactions Invited

Takashi Kumagai

Seminar at Max Planck Institute for Polymer Research  2018.6 

Physical Chemistry with Single Molecules Studied by Scanning Probe Microscopy Invited

Takashi Kumagai

Seminar at Kyoto University  2018.5 

Near-Field Induced Chemistry Studied by Scanning Tunneling Microscopy Invited International conference

Takashi Kumagai

The 5th Ito International Research Center Conference &. RIKEN Centennial Anniversary Conference  2017.11 

Heat-/Electron-/Light-/Force-induced tautomerization in a single porphycene molecule Invited International conference

Takashi Kumagai

Symposium on Surface Science and Nanotechnology - 25th Anniversary of SSSJ Kansai  ( Kyoto )   2017.1 

Heat-/Electron-/Light-/Force-induced tautomerization in a single porphycene molecule Invited

Takashi Kumagai

Seminar at Institute for Molecular Science  2016.12 

Heat-/Electron-/Light-/Force-induced tautomerization in a single porphycene molecule Invited International conference

Takashi Kumagai

Workshop "Atomic-scale manipulation of molecules on Solid Surfaces"  2016.7 

Direct observation of H-bond dynamics using scanning tunneling microscopy Invited International conference

Takashi Kumagai

80th Annual Meeting of the DPG and Spring Meeting  2016.3 

Direct observation and control of H-bond dynamics using scanning probe microscopy Invited

Takashi Kumagai

Seminar at Institute of Physical Chemistry, Polish Academy of Sciences  2015.11 

Direct observation of H-bond dynamics using scanning probe microscopy Invited International conference

Takashi Kumagai

Collaborative Research Centre 1073 workshop  2015.10 

Direct observation of H-bond dynamics using scanning probe microscopy Invited

Takashi Kumagai

Seminar at Institute of Physics of the Czech Academy of Science  2015.9 

Local Characterization of Ultrathin ZnO Layers on Ag(111) by STM and AFM Invited

Takashi Kumagai

Colloquium of the Collaborative Research Centre 951 “Hybrid Inorganic/Organic Systems for Opto-Electronics”  2015.4 

Control of Intramolecular H Atom Transfer Reaction Using Scanning Tunneling Microscopy Invited

Takashi Kumagai

Seminar at Free University Berlin  2014.1 

Visualization of hydrogen-bond dynamics Invited

Takashi Kumagai

Seminar at Free University Berlin  2013.4 

Visualization of hydrogen-bond dynamics within water-based model systems on a metal surface Invited

Takashi Kumagai

Seminar at Donostia International Physics Center  2013.1 

井上研究奨励賞

2013   井上科学振興財団  

熊谷崇