# Chiral Plasmonic Surface Temperature Switching by Several Tens of Kelvins in Titanium Nitride Nanostructures https://mdr.nims.go.jp/datasets/3ae71bce-d605-4816-95c5-3758e71d3d25 ## File - [Setoura_NL_chiral-heat.pdf](https://mdr.nims.go.jp/filesets/f6ec78fd-185a-4af1-a683-1c6bc9ab40c7/download) ([Detail](https://mdr.nims.go.jp/filesets/f6ec78fd-185a-4af1-a683-1c6bc9ab40c7.md)) ## Id 3ae71bce-d605-4816-95c5-3758e71d3d25 ## Local identifier ## Visibility open_to_public ## State published ## Created at 2026-02-09T05:16:40.503931Z ## Updated at 2026-02-10T07:30:22.217962Z ## Published at 2026-02-10T03:38:56.639167Z ## Doi ## First published url https://doi.org/10.1021/acs.nanolett.5c05212 ## Date published 2026-01-14 ## Recorded date published 2026-1-14 ## Resource type journal_article ## Manuscript type vor ## Collection ## Title - title: Chiral Plasmonic Surface Temperature Switching by Several Tens of Kelvins in Titanium Nitride Nanostructures title_type: original lang: en ## Description - description: The strong asymmetric optical response of plasmonic metal nanostructures to right- and left-handed circularly polarized light has attracted great interest in nanotechnology. However, when considering heat generation in these structures, the surface temperature distribution becomes nearly isothermal regardless of which handedness of circularly polarized light is used. This is because of the high thermal conductivity of noble metals and the diffusive nature of heat transfer. In this study, we experimentally show that the surface temperature patterns of chiral plasmonic nanostructures made from titanium nitride, which has a thermal conductivity less than 10% that of gold, become clearly different under right- and left-circularly polarized light, with the temperature contrast reaching several tens of kelvins. This temperature switching allows nanoscale spatial control of photothermal chemical reactions. Our findings suggest a significant potential for shaping nanoscale temperature distributions in the field of thermoplasmonics. description_type: abstract lang: und ## Creator - name: Kenji Setoura role: author orcid: https://orcid.org/0000-0002-4610-7407 - name: Tomoya Oshikiri role: author orcid: https://orcid.org/0000-0002-1268-0256 - name: Mamoru Tamura role: author orcid: https://orcid.org/0000-0002-8445-5613 - name: Ken Morita role: author - name: Hideki Fujiwara role: author - name: Satoshi Ishii role: author orcid: https://orcid.org/0000-0003-0731-8428 - name: Yusuke Fujii role: author - name: Yasutaka Matsuo role: author orcid: https://orcid.org/0000-0002-5071-0284 - name: Takuya Iida role: author orcid: https://orcid.org/0000-0003-1313-7025 - name: Kohei Imura role: author orcid: https://orcid.org/0000-0002-7180-9339 ## Contact agent ## Publisher organization: American Chemical Society (ACS) ## Managing organization ## Keyword - subject: Plasmonic heating schema: not_defined - subject: Chiral plasmonics schema: not_defined - subject: Circular dichroism schema: not_defined - subject: Thermoplasmonics schema: not_defined - subject: Refractory plasmonics schema: not_defined ## Rights - identifier: https://creativecommons.org/licenses/by/4.0/ ## Other identifier(s) ## Data origin ## Embargo ## Journal - title: Nano Letters issn: '15306984' volume: '26' issue: '1' start_page: 351 end_page: 357 ## Conference ## Related item ## Funding - identifier: JPMXP1225HK0024 funder_name: Ministry of Education, Culture, Sports, Science and Technology - identifier: JP22H05131 funder_name: Japan Society for the Promotion of Science - identifier: JP22H05136 funder_name: Japan Society for the Promotion of Science - identifier: JP23H01825 funder_name: Japan Society for the Promotion of Science - identifier: JP23H01916 funder_name: Japan Society for the Promotion of Science - identifier: JP23H01927 funder_name: Japan Society for the Promotion of Science - identifier: JP23K04561 funder_name: Japan Society for the Promotion of Science - identifier: JP24K08282 funder_name: Japan Society for the Promotion of Science - identifier: JP24K21723 funder_name: Japan Society for the Promotion of Science - identifier: JP25H00421 funder_name: Japan Society for the Promotion of Science - identifier: JP25H00828 funder_name: Japan Society for the Promotion of Science - identifier: JP25H01627 funder_name: Japan Society for the Promotion of Science - identifier: JP25H01633 funder_name: Japan Society for the Promotion of Science - identifier: JP25H01637 funder_name: Japan Society for the Promotion of Science - identifier: JP25K22238 funder_name: Japan Society for the Promotion of Science - identifier: JPMJFR2139 funder_name: Japan Science and Technology Corporation - identifier: JPMJMI21G1 funder_name: Japan Science and Technology Corporation ## Instrument ## Instrument operator ## Instrument managing organization ## Measurement method ## Specimen ## Chemical composition ## Structure for specimen ## Structural feature for specimen ## Specific property for specimen ## Process for specimen treatment ## Computational method ## Energy level/transition state ## Software ## Custom property ## Fileset - id: f6ec78fd-185a-4af1-a683-1c6bc9ab40c7 filename: Setoura_NL_chiral-heat.pdf content_type: application/pdf size: 3929206 md5: 1cdc68db415e979d0de1846c0fa7eac0 ## Thumbnail fileset_id: f6ec78fd-185a-4af1-a683-1c6bc9ab40c7 filename: Setoura_NL_chiral-heat.pdf