Seiju Hasegawa, Masatoshi Kanoda, Mamoru Tamura, Kota Hayashi, Shiho Tokonami, Takuya Iida, Kohei Imura. Plasmon dephasing time and optical field enhancement in a plasmonic nanobowl substrate studied by scanning near-field optical microscopy. The Journal of Chemical Physics. 2024. 161. 5. 054713
Keiko Tawa, Takeha Shinohara, Yasunori Nawa, Seiju Hasegawa, Kohei Imura. Nanoantenna Effect at the Center of the Bull’s Eye Pattern by Controlling the Refractive Indices and Layer Thicknesses of Dielectric Media on a Silver Surface. The Journal of Physical Chemistry C. 2024. 128. 7. 3011-3018
Seiju Hasegawa, Honoka Ichikawa, Kohei Imura. Selective Excitation of Dark Plasmon Modes Using Cylindrical Vector Beams Studied by Microscopic Imaging of Nonlinear Photoluminescence. The Journal of Physical Chemistry C. 2024. 128. 6. 2536-2542
Seiju Hasegawa, Kohei Imura. Photoluminescence Properties of Gold Nanorod and J-Aggregate Hybrid Systems Studied by Scanning Near-Field Optical Microscopy. The Journal of Physical Chemistry C. 2022. 126. 13. 5944-5949
Tomoya Nagasue, Takeha Shinohara, Seiju Hasegawa, Kohei Imura, Keiko Tawa. Nanoantenna effect dependent on the center structure of Bull's eye-type plasmonic chip. OPTICS EXPRESS. 2022. 30. 5. 7526-7538
Imaging of optical chirality near single gold nanoplates illuminated by linearly polarized near-field
(Optics and Photonics International Congress (OPIC), The 11th Optical Manipulation and Structured Materials Conference (OMC2024) 2024)