[16p-WL1_201-1~14] Innovation in Physical Chemistry and Quantum Life Sciences via Photothermal Conversion

5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)

[16p-WL1_201-11] Local-Chirality-Induced Switching of Optical Heating in Plasmonic Nanostructures

〇Kenji Setoura¹, Mamoru Tamura^2,3, Tomoya Oshikiri⁴, Takuya Iida^3,5, Yasutaka Matsuo⁶ (1.Univ. Hyogo, 2.Kwansei Gakuin Univ., 3.OMU (RILACS), 4.Tohoku Univ., 5.OMU (Sch. Sci.), 6.Hokkaido Univ.)

Keywords:

thermoplasmonics,plasmonic heating,photothermal conversion

When metallic nanostructures are illuminated, plasmon excitation induces polarization currents, and Joule heating leads to a local temperature rise. By using materials with low thermal conductivity, such as titanium nitride, the spatial pattern of Joule heating can be clearly transferred to the surface temperature distribution of the nanostructure. In this study, to explore control of plasmonic heating by the wavelength and polarization of light, we investigate heating switching induced by circularly polarized illumination of U-shaped titanium nitride nanostructures.