2026-10-14T02:59:30Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34020604 2026-09-29T03:06:22Z category_146 category_915 category_7 category_8 category_16 category_21 category_39 category_931 portal_63 item_type_6 month_year_09_2026

Unveiling Plasmon-Enhanced Localized Fields of Titanium Nitride via Complementary Electron Microscopy Techniques Wanting He (5847047) Isobel C. Bicket (7484210) Yong Wang (12837) Oscar Ávalos-Ovando (11326946) Andrei I. Pastukhov (24157360) Andrei V. Kabashin (1490008) Gianluigi A. Botton (334988) Alexander O. Govorov (1352145) Dongling Ma (1269888) Space Science Physical Sciences not elsewhere classified Medicine Microbiology Physiology Biotechnology Ecology Information Systems not elsewhere classified specific excitation wavelength photothermally responsive nanomaterials correlating nanoparticle size enhanced localized fields range plasmonic applications findings also reveal field electron microscopy ultrafast pulsed laser plasmon resonance toward fuse smaller nps energy laser synthesis creating larger nps plasmonic response field enhancement also serving near fields unveiling plasmon tin nps investigate plasmon individual nps surface oxidation promising alternatives noble metals monochromated tem investigating plasmonically integrated tem initial high infrared region could contribute Titanium nitride nanoparticles (TiN NPs) are promising alternatives to noble metals for visible-range plasmonic applications, yet their structure–property relationships remain insufficiently understood. Here, we combine ultrafast transmission electron microscopy (UTEM) and monochromated TEM to investigate plasmon-enhanced localized fields in TiN NPs. Photon-induced near-field electron microscopy (PINEM) enables the visualization and quantification of near fields in individual NPs while also serving as a tool to fuse smaller NPs with an ultrafast pulsed laser, creating larger NPs to explore the maximum near-field enhancement under a specific excitation wavelength. Our findings also reveal that the surface oxidation of TiN NPs, induced by initial high-energy laser synthesis in water, could contribute to a red-shift of their plasmon resonance toward the near-infrared region. By correlating nanoparticle size and composition with plasmonic response, this study provides new insights into light–TiN interactions and highlights the potential of tunable-laser-integrated TEM for investigating plasmonically and photothermally responsive nanomaterials. 2026-09-28T00:00:00Z Text Journal contribution 10.1021/acs.nanolett.6c03589.s001 https://figshare.com/articles/journal_contribution/Unveiling_Plasmon-Enhanced_Localized_Fields_of_Titanium_Nitride_via_Complementary_Electron_Microscopy_Techniques/34020604 CC BY-NC 4.0