1. Fluorescence spectra shape based dynamic thermometry.
- Author
-
Liwang Liu, Creten, Sebastiaan, Firdaus, Yuliar, Flores Cuautle, Jose Jesus Agustin, Kouyaté, Mansour, Van der Auweraer, Mark, and Glorieux, Christ
- Subjects
- *
FLUORESCENCE spectroscopy , *THERMOMETRY , *NEURAL circuitry , *RHODAMINE B , *COPPER chlorides - Abstract
An entirely optical, dynamic thermometry technique based on the temperature dependence of a fluorescence spectrum is presented. Different from conventional intensity-based fluorescence thermometry, in this work, neural network recognition is employed to extract the sample temperature from the magnitude and shape of recorded fluorescence spectra. As a demonstration to determine the depth profile of dynamical temperature variations and of the thermal and optical properties of semitransparent samples, in-depth photothermally induced periodical temperature oscillations of a rhodamine B and copper chloride dyed glycerol sample were measured with an accuracy of 4.2 mK·Hz–1/2 and fitted well by a 1D thermal diffusion model. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF