| DOI | Resolve DOI: https://doi.org/10.1364/OL.33.001464 |
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| Author | Search for: Astrath, N.G.C.1; Search for: Astrath, F.B.G.1; Search for: Shen, Jun; Search for: Zhou, Jianqin1; Search for: Pedreira, P.R.B.; Search for: Malacarne, L.C.; Search for: Bento, A.C.; Search for: Baesso, M |
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| Affiliation | - National Research Council of Canada. NRC Institute for Fuel Cell Innovation
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| Format | Text, Article |
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| Abstract | Thermal lens spectroscopy is a highly sensitive and versatile photothermal technique for material analysis, providing optical and thermal properties. To use less expensive multimode non-Gaussian lasers for quantitative analysis of low-absorption materials, this Letter presents a theoretical model for time-resolved mode-mismatched thermal lens spectroscopy induced by a cw laser with a top-hat profile. The temperature profile in a sample was calculated, and the intensity of the probe beam center at the detector plane was also derived using the Fresnel diffraction theory. Experimental validation was performed with glass samples, and the results were found well consistent with literature values of the thermo-optical properties of the samples. |
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| Publication date | 2008-07-01 |
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| In | |
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| NPARC number | 8901223 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 852cecc4-aa0e-4b18-8b54-8b39f2ba1f97 |
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| Record created | 2009-04-22 |
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| Record modified | 2020-04-15 |
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