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Title: Frequency domain photothermal radiometry with spherical solids

Abstract

Motivated by increasing practical and industrial applications of photothermal techniques in the measurement of materials of various shapes with curvature, we extend the applications of photothermal diagnostics to solid spheres, in which both theoretical and experimental photothermal radiometry studies on spherical geometries and thermal diffusivity of the sample are discussed. Based on the Green function method, a full thermal-wave field distribution of a spherical solid is obtained. The characteristics of the thermal-wave field with respect to thermophysical properties of the material, the diameter of the solid, the size of the incident laser beam, and the measurement angle are discussed. Experimental results with steel spheres of different diameters exhibit good agreement between the theory and the experiments.

Authors:
; ; ;  [1];  [2];  [3];  [3]
  1. Institute of Modern Optical Technologies, Suzhou University, Suzhou, Jiangsu 215006 (China)
  2. (China)
  3. (Canada)
Publication Date:
OSTI Identifier:
20982820
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 101; Journal Issue: 8; Other Information: DOI: 10.1063/1.2721424; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; GEOMETRY; GREEN FUNCTION; LASERS; SPHERES; STEELS; THERMAL DIFFUSIVITY

Citation Formats

Wang, Chinhua, Liu, Yue, Mandelis, Andreas, Shen, Jun, Key Lab of Modern Optical Technologies of Jiangsu Province, Jiangsu, Center for Advanced Diffusion Wave Technologies, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto M5S 3G8, and National Research Council of Canada, Institute for Fuel Cell Innovation, 4250 Wesbrook Mall, Vancouver, British Columbia V6T 1W5. Frequency domain photothermal radiometry with spherical solids. United States: N. p., 2007. Web. doi:10.1063/1.2721424.
Wang, Chinhua, Liu, Yue, Mandelis, Andreas, Shen, Jun, Key Lab of Modern Optical Technologies of Jiangsu Province, Jiangsu, Center for Advanced Diffusion Wave Technologies, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto M5S 3G8, & National Research Council of Canada, Institute for Fuel Cell Innovation, 4250 Wesbrook Mall, Vancouver, British Columbia V6T 1W5. Frequency domain photothermal radiometry with spherical solids. United States. doi:10.1063/1.2721424.
Wang, Chinhua, Liu, Yue, Mandelis, Andreas, Shen, Jun, Key Lab of Modern Optical Technologies of Jiangsu Province, Jiangsu, Center for Advanced Diffusion Wave Technologies, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto M5S 3G8, and National Research Council of Canada, Institute for Fuel Cell Innovation, 4250 Wesbrook Mall, Vancouver, British Columbia V6T 1W5. Sun . "Frequency domain photothermal radiometry with spherical solids". United States. doi:10.1063/1.2721424.
@article{osti_20982820,
title = {Frequency domain photothermal radiometry with spherical solids},
author = {Wang, Chinhua and Liu, Yue and Mandelis, Andreas and Shen, Jun and Key Lab of Modern Optical Technologies of Jiangsu Province, Jiangsu and Center for Advanced Diffusion Wave Technologies, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto M5S 3G8 and National Research Council of Canada, Institute for Fuel Cell Innovation, 4250 Wesbrook Mall, Vancouver, British Columbia V6T 1W5},
abstractNote = {Motivated by increasing practical and industrial applications of photothermal techniques in the measurement of materials of various shapes with curvature, we extend the applications of photothermal diagnostics to solid spheres, in which both theoretical and experimental photothermal radiometry studies on spherical geometries and thermal diffusivity of the sample are discussed. Based on the Green function method, a full thermal-wave field distribution of a spherical solid is obtained. The characteristics of the thermal-wave field with respect to thermophysical properties of the material, the diameter of the solid, the size of the incident laser beam, and the measurement angle are discussed. Experimental results with steel spheres of different diameters exhibit good agreement between the theory and the experiments.},
doi = {10.1063/1.2721424},
journal = {Journal of Applied Physics},
number = 8,
volume = 101,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}
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