Analytical Model for Pulsed-Laser Induced Mode-Mismatched Dual-Beam Thermal Lens Spectroscopy in Liquids.
| Autor: | Isidro-Ojeda MA; Facultad de Ingeniería, Universidad Autónoma de Yucatán, A. P. 150, Cordemex, Mérida, Yucatán 97302, Mexico., Alvarado-Gil JJ; Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados del I.P.N.-Unidad Mérida, Carretera Antigua a Progreso km. 6, A. P. 73 Cordemex, Mérida, Yucatán 97310, Mexico., Capeloto OA; Instituto de Saúde e Biotecnologia de Coari, Universidade Federal do Amazonas, Coari, Amazonas 69460-000, Brazil., Zambrano-Arjona MA; Facultad de Ingeniería, Universidad Autónoma de Yucatán, A. P. 150, Cordemex, Mérida, Yucatán 97302, Mexico. |
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| Jazyk: | angličtina |
| Zdroj: | ACS omega [ACS Omega] 2023 Aug 02; Vol. 8 (32), pp. 29527-29533. Date of Electronic Publication: 2023 Aug 02 (Print Publication: 2023). |
| DOI: | 10.1021/acsomega.3c03297 |
| Abstrakt: | Analytical models are very important to understand physical, chemical, and biological phenomena. In many cases, obtaining an analytical model is a complex, even an impossible task. In this work, an analytical model for thermal lens spectroscopy has been developed. The model considers light absorbing liquids, a laser pulsed beam as the heat source, timescale thermal regime, and small phase change produced by heating. A simplification for low-absorption samples is obtained. A complete theoretical study of their utilization is shown. Measurements of the thermal diffusivity of water-ethanol sample mixtures in the liquid phase are analyzed. These values for pure substances are in good agreement with those reported in the literature. Our methodology could be very useful in the analysis of the optical and thermal properties of liquids. Competing Interests: The authors declare no competing financial interest. (© 2023 The Authors. Published by American Chemical Society.) |
| Databáze: | MEDLINE |
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