Quantitative Temperature Measurements in Gold Nanorods Using Digital Holography
Source abstract
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.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Photoacoustic and Ultrasonic Imaging · Digital Holography and Microscopy · Near-Field Optical Microscopy
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laboratoire de Neurophotonique CNRS UMR8250, Université Paris Descartes, 75270 Paris, France
Light, Nanomaterials, and Nanotechnology L2n, UTT and CNRS ERL 7004, 12 rue Marie Curie - CS 42060, 10004 Troyes, France
ESPCI Paris, PSL University, CNRS, Institut Langevin, 1 rue Jussieu, 75005 Paris, France
Sorbonne Université, INSERM, CNRS, Institut de la Vision, 17 rue Moreau, F-75012 Paris, France
Funding
Agence Nationale de la Recherche
References (49)
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