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Laser induced thermoelastic surface displacement in solids detected simultaneously by photothermal mirror and interferometry
ID Flizikowski, Gabriel Antonio Siqueira (Author), ID Capeloto, Otávio Augusto (Author), ID Camargo, V. G. (Author), ID Anghinoni, Bruno (Author), ID Baesso, Mauro L. (Author), ID Malacarne, Luis Carlos (Author), ID Belançon, M. P. (Author), ID Požar, Tomaž (Author), ID Astrath, Nelson Guilherme Castelli (Author)

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Abstract
We propose a combined pump-probe optical method to investigate heat diffusion properties of solids. We demonstrate single-shot simultaneous laser-induced thermoelastic surface displacement of metals detected by concurrent measurements using photothermal mirror and interferometry. Both methods probe the surface displacement by analyzing the wavefront distortions of the probe beams reflected from the surface of the sample. Thermoelastic properties are retrieved by transient analysis in combination with numerical description of the thermoelastic displacement and temperature rise in the sample and in the surrounding air. This technique presents a capability for material characterization that can be extended to experiments for quantitative surface mapping.

Language:English
Keywords:photothermal mirror, interferometry, thermal expansion
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Publication status:Published
Publication version:Version of Record
Year:2020
Number of pages:Str. 7116-7124
Numbering:Vol. 28, no. 5, art. 386344
PID:20.500.12556/RUL-114437 This link opens in a new window
UDC:519.6:544.537(045)
ISSN on article:1094-4087
DOI:10.1364/OE.386344 This link opens in a new window
COBISS.SI-ID:17053211 This link opens in a new window
Copyright:
“© 2020 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.” (Datum opombe: 12. 6. 2023)
Publication date in RUL:28.02.2020
Views:2031
Downloads:570
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Record is a part of a journal

Title:Optics express
Shortened title:Opt. express
Publisher:Optical Society of America
ISSN:1094-4087
COBISS.SI-ID:8636438 This link opens in a new window

Secondary language

Language:Slovenian
Keywords:fototermalno zrcalo, interferometrija, termoelastična ekspanzija

Projects

Funder:Other - Other funder or multiple funders
Funding programme:Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Project number:001
Funder:Other - Other funder or multiple funders
Funding programme:Conselho Nacional de Desenvolvimento Científico e Tecnológico
Funder:Other - Other funder or multiple funders
Funding programme:Fundação Araucária
Funder:ARRS - Slovenian Research Agency
Project number:L2-9254
Name:Prostorsko in časovno oblikovanje laserske svetlobe za minimalno invazivne oftalmološke posege
Funder:ARRS - Slovenian Research Agency
Project number:P2-0392
Name:Optodinamika

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