Quantitative Temperature Measurements in Gold Nanorods Using Digital Holography
- 3 March 2021
- journal article
- research article
- Published by American Chemical Society (ACS) in ACS Applied Materials & Interfaces
- Vol. 13 (8), 10313-10320
- https://doi.org/10.1021/acsami.0c22420
Abstract
Temperature characterization and quantification at the nanoscale remain core challenges in applications based on photoinduced heating of nanoparticles. Here, we propose a new approach to obtain quantitative temperature measurements on individual nanoparticles by combining modulated photothermal stimulation and heterodyne digital holography. From full-field reconstructed holograms, the temperature is determined with a precision of 0.3 K via a simple approach without requiring any calibration or fitting parameters. As an application, the dependence of temperature on the aspect ratio of gold nanoparticles is investigated. A good agreement with numerical simulation is observed.Keywords
Funding Information
- Agence Nationale de la Recherche (ANR-13-BS10-0013-03)
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