Fluorescence spectra shape based dynamic thermometry
| Autor: | Yuliar Firdaus, Liwang Liu, Mansour Kouyaté, Mark Van der Auweraer, Sebastiaan Creten, Jose Jesus Agustin Flores Cuautle, Christ Glorieux |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_compound
Physics and Astronomy (miscellaneous) chemistry Rhodamine B Analytical chemistry Fluorescence cross-correlation spectroscopy Fluorescence correlation spectroscopy Thermal diffusivity Laser-induced fluorescence Temperature measurement Fluorescence Fluorescence spectroscopy |
| Zdroj: | Applied Physics Letters. 104:031902 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/1.4862921 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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