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dc.contributor.authorKobecki, Michael
dc.contributor.authorTandoi, Guiseppe
dc.contributor.authorDi Gaetano, Eugenio
dc.contributor.authorSorel, Marc
dc.contributor.authorScherbakov, Alexey V.
dc.contributor.authorCzerniuk, Thomas
dc.contributor.authorSchneider, Christian
dc.contributor.authorKamp, Martin
dc.contributor.authorHöfling, Sven
dc.contributor.authorAkimov, Andrey V.
dc.contributor.authorBayer, Manfred
dc.identifier.citationKobecki , M , Tandoi , G , Di Gaetano , E , Sorel , M , Scherbakov , A V , Czerniuk , T , Schneider , C , Kamp , M , Höfling , S , Akimov , A V & Bayer , M 2020 , ' Picosecond ultrasonics with miniaturized semiconductor lasers ' , Ultrasonics .
dc.identifier.otherPURE: 266955183
dc.identifier.otherPURE UUID: 1d978e6c-5b97-4888-b672-657cd356977c
dc.identifier.otherScopus: 85083293651
dc.descriptionFunding: Bundesministerium für Bildung und Forschung through the project “Nano Akusto-Mechanik mit integriertem Laser (NAMIL)” (FKZ 13N14071) and the Deutsche Forschungsgemeinschaft in the frame of TRR 142 (project A6).en
dc.description.abstractThere is a great desire to extend ultrasonic techniques to the imaging and characterization of nanoobjects. This can be achieved by picosecond ultrasonics, where by using ultrafast lasers it is possible to generate and detect acoustic waves with frequencies up to terahertz and wavelengths down to nanometers. In our work we present a picosecond ultrasonics setup based on miniaturized mode-locked semiconductor lasers, whose performance allows us to obtain the necessary power, pulse duration and repetition rate. Using such a laser, we measure the ultrasonic echo signal with picosecond resolution in a 112 nm thick Al film deposited on a semiconductor substrate. We show that the obtained signal is as good as the signal obtained with a standard bulky mode-locked Ti-Sa laser. The experiments pave the way for designing integrated portable picosecond ultrasonic setups on the basis of miniaturized semiconductor lasers.
dc.rightsCopyright © 2020 Elsevier B.V. All rights reserved. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectPicosecond ultrasonicsen
dc.subjectSemiconductor lasersen
dc.subjectCoherent phononsen
dc.subjectQC Physicsen
dc.subjectT Technologyen
dc.titlePicosecond ultrasonics with miniaturized semiconductor lasersen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews.Condensed Matter Physicsen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.description.statusPeer revieweden

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