| DOI | Trouver le DOI : https://doi.org/10.1364/OL.33.001464 |
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| Auteur | Rechercher : Astrath, N.G.C.1; Rechercher : Astrath, F.B.G.1; Rechercher : Shen, Jun; Rechercher : Zhou, Jianqin1; Rechercher : Pedreira, P.R.B.; Rechercher : Malacarne, L.C.; Rechercher : Bento, A.C.; Rechercher : Baesso, M |
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| Affiliation | - Conseil national de recherches du Canada. Institut d'innovation en piles à combustible du CNRC
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| Format | Texte, Article |
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| Résumé | 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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| Date de publication | 2008-07-01 |
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| Dans | |
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| Numéro NPARC | 8901223 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 852cecc4-aa0e-4b18-8b54-8b39f2ba1f97 |
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| Enregistrement créé | 2009-04-22 |
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| Enregistrement modifié | 2020-04-15 |
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