Plasmonic calorimetry spectroscopy for nanoscale analysis of thermal properties

2015 Fiscal Year Final Research Report

• Project/Area Number: 26630063
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Thermal engineering
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Yano Takaaki 東京工業大学, 総合理工学研究科(研究院), 助教 (90600651)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: プラズモニクス / 近接場分光 / ラマン散乱 / カロリメトリー

Outline of Final Research Achievements

We developed a nano-spectroscopic method to analyze nano-thermal properties of materials using a laser-illuminated metallic probe tip as a nanoscale heat source. Light induced heating temperature generated in the vicinity of metallic nanostructures was found to be strongly dependent upon the power and wavelength of the incident laser wavelength, and gap distance between two metallic nanostructures as well as size and shape of the metallic nanostructures. The laser-induced temperature increased up to several hundreds °C, which was precisely controlled by the incident laser power. Finally, this technique was successfully applied to investigate glass transition of PMMA polyer thin-films.

Free Research Field

ナノフォトニクス