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Naslov:Optimized frequency dependent photothermal beam deflection spectroscopy
Avtorji:ID Franko, Mladen, univerza v novi gorici (Avtor)
ID Korte, Dorota, univerza v novi gorici (Avtor)
ID Cabrera, Humberto, Instituto Venezolano de Investigaciones Científicas (Avtor), et al.
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Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:In the paper the optimization of the experimental setup for photothermal beam deflection spectrometry is performed by analyzing the influence of its geometrical parameters (detector and sample position, probe beam radius and its waist position etc) on the detected signal. Furthermore, the effects of fluid’s thermo-optical properties, for optimized geometrical configuration, on the measurement sensitivity and uncertainty determination of sample thermal properties is also studied. The examined sample is a recently developed CuFeInTe3 material. Results show, that it is a complex problem to choose the proper geometrical configuration as well as sensing fluid to enhance the sensitivity of the method. A signal enhancement is observed at low modulation frequencies by placing the sample in acetonitrile (ACN), while at high modulation frequencies the sensitivity is higher for measurements made in air. For both, detection in air and acetonitrile the determination of CuFeInTe3 thermal properties is performed. The determined values of thermal diffusivity and thermal conductivity are (0.048 ± 0.002) × 10−4 m2 s−1 and 4.6 ± 0.2 W m−1 K−1 and (0.056 ± 0.005) × 10−4 m2 s−1 and 4.8 ± 0.4 W m−1 K−1 for ACN and air, respectively. It is seen, that the determined values agree well within the range of their measurement uncertainties for both cases, although the measurement uncertainty is two times lower for the measurements in ACN providing more accurate results. The analysis is performed by the use of recently developed theoretical description based on the complex geometrical optics. It is also shown, how the presented work fits into the current status of photothermal beam deflection spectroscopy.
Ključne besede:Optitermi, na spektrometrija, toplotna difuzivnost, toplotna prevodnost, polprevodniki, vpliv topila
Leto izida:2016
Št. strani:12
Številčenje:13, 12
PID:20.500.12556/RUNG-2755-cde09edb-49ac-1e1c-618b-e8c7ccb974e1 Novo okno
COBISS.SI-ID:4562939 Novo okno
DOI:http://dx.doi.org/10.1088/1612-2011/13/12/125701 Novo okno
NUK URN:URN:SI:UNG:REP:0TOUYOCI
Datum objave v RUNG:07.11.2016
Število ogledov:6354
Število prenosov:0
Metapodatki:XML DC-XML DC-RDF
:
FRANKO, Mladen, KORTE, Dorota in CABRERA, Humberto, 2016, Optimized frequency dependent photothermal beam deflection spectroscopy. Laser Physics Letters [na spletu]. 2016. Vol. 13, no. 12. [Dostopano 8 april 2025]. DOI http://dx.doi.org/10.1088/1612-2011/13/12/125701. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=2755
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Gradivo je del revije

Naslov:Laser Physics Letters
Skrajšan naslov:Laser Phys Lett
Založnik:IOP Publishing: Hybrid Open Access
Leto izida:2016
ISSN:1612-2011

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
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Začetek licenciranja:06.11.2016

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