Presentation
11 June 2018 Highly-sensitive quantitative thermal microscopy using gold nano-particles as heat sources (Conference Presentation)
Antoine Federici, Hadrien Robert, Kahina Meziane, Serge Monneret, Guillaume Baffou, Benoit Wattellier
Author Affiliations +
Abstract
Thermal imaging based on Quadriwave Lateral Shearing Interferometry (QWLSI) is able to measure temperature fields from the temperature-induced refractive index changes of the medium surrounding a heat source. The conventional arrangement employed a continuous wave laser source to illuminate nano-particles and a wavefront analyzer (SID4Bio) to perform QWLSI. With this arrangement, a resolution of 1°C is achieved on the temperature variation measurement. We present a system implementing a synchronous detection modality. By modulating the laser source locked-in with the SID4Bio camera we get rid of the low-frequency noise and so increase the sensitivity of the temperature variation measurement.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Antoine Federici, Hadrien Robert, Kahina Meziane, Serge Monneret, Guillaume Baffou, and Benoit Wattellier "Highly-sensitive quantitative thermal microscopy using gold nano-particles as heat sources (Conference Presentation)", Proc. SPIE 10497, Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues XVI, 1049719 (11 June 2018); https://doi.org/10.1117/12.2290083
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KEYWORDS
Thermography

Signal to noise ratio

Temperature metrology

Cameras

Chemistry

Gold

Laser sources

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