Publications of Takashi Kumagai

Shiotari, A., J. Nishida, A. Hammud, F. Schulz, M. Wolf, T. Kumagai and M. Müller: Scattering near-field optical microscopy at 1-nm resolution using ultralow tip oscillation amplitudes. Science Advances 11 (24), eadu1415 (2025).

Cirera, B., S. Liu, Y. Park, I.H. Ikutaro Hamada, M. Wolf, A. Shiotari and T. Kumagai: Single-molecule tip-enhanced Raman spectroscopy of C₆₀ on the Si(111)-(7x7) surface. Physical Chemistry Chemical Physics 26 (32), 21325–21331 (2024).

Lin, C., F. Krecinic, H. Yoshino, A. Hammud, A. Pan, M. Wolf, M. Müller and T. Kumagai: Continuous-Wave Multiphoton-Induced Electron Transfer in Tunnel Junctions Driven by Intense Plasmonic Fields. ACS Photonics 10 (10), 3637–3646 (2023).

Liu, S., F.P. Bonafe, H. Appel, A. Rubio, M. Wolf and T. Kumagai: Inelastic Light Scattering in the Vicinity of a Single-Atom Quantum Point Contact in a Plasmonic Picocavity. ACS Nano 17 (11), 10172–10180 (2023).

Cirera, B., M. Wolf and T. Kumagai: Joule Heating in Single-Molecule Point Contacts Studied by Tip-Enhanced Raman Spectroscopy. ACS Nano 16 (10), 16443–16451 (2022).

Liu, S., A. Hammud, I. Hamada, M. Wolf, M. Müller and T. Kumagai: Nanoscale coherent phonon spectroscopy. Science Advances 8 (42), eabq5682 (2022).

Liu, S., A. Hammud, M. Wolf and T. Kumagai: Atomic Point Contact Raman Spectroscopy of a Si(111)-7 × 7 Surface. Nano Letters 21 (9), 4057–4061 (2021).

Liu, S., A. Hammud, M. Wolf and T. Kumagai: Anti-Stokes Light Scattering Mediated by Electron Transfer Across a Biased Plasmonic Nanojunction. ACS Photonics 8 (9), 2610–2617 (2021).

Kumagai, T.: Turn on Nanolight in a Tiny Gap: Photophysical and photochemical phenomena are directly observable using low-temperature scanning tunneling microscopy combined with plasmonics. Vakuum in Forschung und Praxis 32 (5), 33–37 (2020).

Kumagai, T.: Turn on Nanolight in a Tiny Gap: Photophysical and photochemical phenomena are directly observable using low-temperature scanning tunneling microscopy combined with plasmonics. Physik Journal 19 (8/9), 59–62 (2020).

Kumagai, T.: Sub-molecular photoluminescence. Nature Photonics 14 (11), 653–657 (2020).

Liu, S., B. Cirera, Y. Sun, I. Hamada, M. Müller, A. Hammud, M. Wolf and T. Kumagai: Dramatic Enhancement of Tip-Enhanced Raman Scattering Mediated by Atomic Point Contact Formation. Nano Letters 20 (8), 5879–5884 (2020).

Böckmann, H., S. Liu, M. Müller, A. Hammud, M. Wolf and T. Kumagai: Near-Field Manipulation in a Scanning Tunneling Microscope Junction with Plasmonic Fabry-Pérot Tips. Nano Letters 19 (6), 3597–3602 (2019).

Böckmann, H., M. Müller, A. Hammud, M.G. Willinger, M. Pszona, J. Waluk, M. Wolf and T. Kumagai: Near-Field Spectral Response of Optically Excited Scanning Tunneling Microscope Junctions Probed by Single-Molecule Action Spectroscopy. The Journal of Physical Chemistry Letters 10, 2068–2074 (2019).

Lin, C., E. Durant, M. Persson, M. Rossi and T. Kumagai: Real-Space Observation of Quantum Tunneling by a Carbon Atom: Flipping Reaction of Formaldehyde on Cu(110). The Journal of Physical Chemistry Letters 10 (3), 645–649 (2019).

Lin, C., K. Ikeda, Y. Shiota, K. Yoshizawa and T. Kumagai: Real-space observation of far- and near-field-induced photolysis of molecular oxygen on an Ag(110) surface by visible light. The Journal of Chemical Physics 151 (14), 144705 (2019).

Litman, Y., J.O. Richardson, T. Kumagai and M. Rossi: Elucidating the Nuclear Quantum Dynamics of Intramolecular Double Hydrogen Transfer in Porphycene. Journal of the American Chemical Society 141 (6), 2526–2534 (2019).

Liu, S., M. Müller, Y. Sun, I. Hamada, A. Hammud, M. Wolf and T. Kumagai: Resolving the Correlation between Tip-Enhanced Resonance Raman Scattering and Local Electronic States with 1 nm Resolution. Nano Letters 19 (8), 5725–5731 (2019).

Böckmann, H., S. Gawinkowski, J. Waluk, M.B. Raschke, M. Wolf and T. Kumagai: Near-Field Enhanced Photochemistry of Single Molecules in a Scanning Tunneling Microscope Junction. Nano Letters 18 (1), 152–157 (2018).

Koch, M., Z. Li, C. Nacci, T. Kumagai, I. Franco and L. Grill: How Structural Defects Affect the Mechanical and Electrical Properties of Single Molecular Wires. Physical Review Letters 121 (4), 047701 (2018).