Academic literature on the topic 'Acoustic Ellipsometry'

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Journal articles on the topic "Acoustic Ellipsometry"

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Lucca, D. A., K. Herrmann, M. J. Klopfstein, and F. Menelao. "Investigation of SiO2 thin films on Si substrates for use as standards for laser-acoustic measuring devices." International Journal of Materials Research 97, no. 9 (2006): 1212–15. http://dx.doi.org/10.1515/ijmr-2006-0190.

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Abstract We report on an investigation of the suitability of SiO2 thin films for use as calibration standards for the measurement of elastic modulus by laser-acoustic measuring devices. Film thicknesses for a range of thin film standards, originally developed for the calibration of ellipsometers, were obtained by X-ray reflectometry, ellipsometry, and metrological scanning force microscopy. Using the calibrated values of film thickness, a laser-acoustic method was used to obtain the elastic moduli of the thin films. Nanoindentation of the films, performed at two different laboratories was used
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Nolot, E., A. Lefevre, and J. N. Hilfiker. "Ellipsometry characterization of bulk acoustic wave filters." physica status solidi (c) 5, no. 5 (2008): 1168–71. http://dx.doi.org/10.1002/pssc.200777795.

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Urbanowicz, A. M., B. Meshman, D. Schneider, and M. R. Baklanov. "Stiffening and hydrophilisation of SOG low-kmaterial studied by ellipsometric porosimetry, UV ellipsometry and laser-induced surface acoustic waves." physica status solidi (a) 205, no. 4 (2008): 829–32. http://dx.doi.org/10.1002/pssa.200777749.

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Plikusiene, Ieva, Vincentas Maciulis, Arunas Ramanavicius, and Almira Ramanaviciene. "Spectroscopic Ellipsometry and Quartz Crystal Microbalance with Dissipation for the Assessment of Polymer Layers and for the Application in Biosensing." Polymers 14, no. 5 (2022): 1056. http://dx.doi.org/10.3390/polym14051056.

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Polymers represent materials that are applied in almost all areas of modern life, therefore, the characterization of polymer layers using different methods is of great importance. In this review, the main attention is dedicated to the non-invasive and label-free optical and acoustic methods, namely spectroscopic ellipsometry (SE) and quartz crystal microbalance with dissipation (QCM-D). The specific advantages of these techniques applied for in situ monitoring of polymer layer formation and characterization, biomolecule immobilization, and registration of specific interactions were summarized
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Chen, Hanying, Tianlin Li, Yifei Hao, et al. "Remote surface optical phonon scattering in ferroelectric Ba0.6Sr0.4TiO3 gated graphene." Journal of Applied Physics 132, no. 15 (2022): 154301. http://dx.doi.org/10.1063/5.0106939.

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We report the effect of remote surface optical (RSO) phonon scattering on carrier mobility in monolayer graphene gated by ferroelectric oxide. We fabricate monolayer graphene transistors back-gated by epitaxial (001) Ba0.6Sr0.4TiO3 films, with field effect mobility up to 23 000 cm2 V−1 s−1 achieved. Switching ferroelectric polarization induces nonvolatile modulation of resistance and quantum Hall effect in graphene at low temperatures. Ellipsometry spectroscopy studies reveal four pairs of optical phonon modes in Ba0.6Sr0.4TiO3, from which we extract RSO phonon frequencies. The temperature dep
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Plikusiene, Ieva, Vincentas Maciulis, Vilius Vertelis, et al. "Revealing the SARS-CoV-2 Spike Protein and Specific Antibody Immune Complex Formation Mechanism for Precise Evaluation of Antibody Affinity." International Journal of Molecular Sciences 24, no. 17 (2023): 13220. http://dx.doi.org/10.3390/ijms241713220.

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The profound understanding and detailed evaluation of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike (SCoV2-S) protein and specific antibody interaction mechanism is of high importance in the development of immunosensors for COVID-19. In the present work, we studied a model system of immobilized SCoV2-S protein and specific monoclonal antibodies by molecular dynamics of immune complex formation in real time. We simultaneously applied spectroscopic ellipsometry and quartz crystal microbalance with dissipation to reveal the features and steps of the immune complex formation.
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Bouzzit, Aziz, Loïc Martinez, Andres Arciniegas, Stéphane Serfaty, and Nicolas Wilkie-Chancellier. "Ellipsometry of surface acoustic waves using 3D vibrometry for viscoelastic material characterization by the estimation of complex Lamé coefficients versus the frequency." Applied Acoustics 228 (January 2025): 110312. http://dx.doi.org/10.1016/j.apacoust.2024.110312.

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Crooks, Richard M., Huey C. Yang, Laurel J. McEllistrem, Ross C. Thomas, and Antonio J. Ricco. "Interactions between self-assembled monolayers and an organophosphonate Detailed study using surface acoustic wave-based mass analysis, polarization modulation-FTIR spectroscopy and ellipsometry." Faraday Discussions 107 (1997): 285–305. http://dx.doi.org/10.1039/a704586g.

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B, Chandar Shekar, Sulana Sundari, Sunnitha S, and Sharmila C. "ARATION AND CHARACTERIZATION POLY (VINYLIDENE FLUORIDE-TRIFLUOROETHYLENE) COPOLYMER THIN FILMS FOR ORGANIC FERROELECTRIC FIELD EFFECT THIN FILM TRANSISTORS." Kongunadu Research Journal 2, no. 1 (2015): 7–10. http://dx.doi.org/10.26524/krj56.

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Polyvinylidene fluoride (PVDF) and Trifluoroethylene ((TrFE) are potential polymers which are used in acoustic transducers and electromechanical actuators because of their inherent piezoelectric response, as heat sensors because of their inherent pyroelectric response and as dielectric layer in organic thin filmtransistors. In the present study thin films of copolymer Poly(vinylidene fluoride-trifluoroethylene) were prepared by spin coating method for two different concentrations 2% to 8% and for various spin speeds from 2000 RPM to 5000 RPM. A P-type Si wafer was used as a substrate to deposi
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Nikolaev, Ivan V., Pavel V. Geydt, Nikolay G. Korobeishchikov, et al. "The Influence of Argon Cluster Ion Bombardment on the Characteristics of AlN Films on Glass-Ceramics and Si Substrates." Nanomaterials 12, no. 4 (2022): 670. http://dx.doi.org/10.3390/nano12040670.

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In this paper, the influence of surface modification on the characteristics and properties of AlN thin films on Si and glass-ceramics substrates is investigated. The surface modification was made at various parameters of argon cluster ions. By using XRD and Raman spectroscopy, it was shown that the obtained AlN films have a hexagonal structure with a characteristic direction of texturing along the c axis and slight deviations from it. A comparison of the AlN surface morphology obtained by atomic force microscopy before and after cluster processing was demonstrated. This demonstrated that the c
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Dissertations / Theses on the topic "Acoustic Ellipsometry"

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Bouzzit, Aziz. "Ellipsométrie acoustique pour le suivi et la caractérisation de matériaux complexes." Electronic Thesis or Diss., CY Cergy Paris Université, 2024. http://www.theses.fr/2024CYUN1304.

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Les matériaux complexes sont aujourd'hui au cœur des enjeux sociétaux majeurs dans la plupart des grands domaines tels que l'énergie, le transport, l'environnement, la conservation/restauration du patrimoine, la santé ou la sécurité. En effet, de par les opportunités d'innovation offertes en matière de fonctionnalités, ces matériaux suscitent de nouvelles problématiques d'analyse et de compréhension multi-physiques et multi-échelles. Il en va de même pour l'instrumentation nécessaire à leur caractérisation.Répandues dans le domaine de la caractérisation non destructive des milieux complexes, l
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Conference papers on the topic "Acoustic Ellipsometry"

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Espinoza, Shirly, Yael Gutiérrez, Sébastien Cueff, et al. "Study of acoustic phonon propagation by femtosecond ellipsometry." In Ultrafast Optics. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/ufo.2023.p2.23.

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Acoustic phonons are generated by the arrival of a femtosecond laser pulse to the surface of a material. By femtosecond pump-probe ellipsometry on thin films and bulk materials, we could discern between different types of transient phenomena including the ones due to the propagation of these photo-induced acoustic waves.
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Chen, Juequan, Eric Louis, Fred Bijkerk, et al. "Ellipsometric and surface acoustic wave sensing of carbon contamination on EUV optics." In SPIE Advanced Lithography, edited by Frank M. Schellenberg and Bruno M. La Fontaine. SPIE, 2009. http://dx.doi.org/10.1117/12.824435.

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Bouzzit, A., A. Arciniegas, L. Martinez, S. Serfaty, and N. Wilkie-Chancellier. "Ultrasonic surface wave parameters monitoring using 3D vibrometry and ellipsometry for local material characterization." In 10th Convention of the European Acoustics Association Forum Acusticum 2023. European Acoustics Association, 2022. http://dx.doi.org/10.61782/fa.2023.0815.

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Taura, Hiroo, Toshihiko Takaki, Masahiro Kawaguchi, Satoru Kaneko, and Takahisa Kato. "The Effect of Thin Lubricant Films on Acoustic Emission Characteristics." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-64256.

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This paper shows the effect of ultrathin lubricant films between sliding bodies on Acoustic Emission (AE) signals induced by the sliding friction. Experiments were conducted with a ball-on-disk friction tester to measure the friction coefficient, the raw AE signals and the root-mean-squarevalues of the AE signals (the AErms signals). The ball was a glass ball of 5mm diameter. The disk was a magnetic disk used for 2.5 inch HDD with a DLC protective layer on its surface, and was coated with PFPE Z-dol 4000 about 1.5nm thick. The AErms signals kept a low level for some time after the start of the
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Zayer, N. K., A. J. C. Grellier, C. N. Pannell, R. Greef, K. Rogers, and M. Zervas. "In situ ellipsometric monitoring of growth of zinc oxide thin films with applications to high-frequency fiber acousto-optic components." In Technical Digest Summaries of papers presented at the Conference on Lasers and Electro-Optics Conference Edition. 1998 Technical Digest Series, Vol.6. IEEE, 1998. http://dx.doi.org/10.1109/cleo.1998.676127.

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Tagawa, Norio, Yoshiaki Tashiro, and Atsunobu Mori. "Effects of End-Group Functionality and Molecular Weight of Ultra-Thin Liquid Lubricant Films on Contact Slider Dynamics in Hard Disk Drives." In ASME/STLE 2004 International Joint Tribology Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/trib2004-64193.

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This paper describes the effect of end-group functionality and molecular weight of ultra-thin liquid lubricant films on contact slider dynamics in hard disk drives. In the experiments, the contact slider dynamics as well as ultra-thin liquid lubricants behavior are investigated using three kinds of lubricants which have different end-groups and molecular weight as a function of lubricant film thickness. The dynamics of a contact slider is mainly monitored using Acoustic Emission (AE). The disks are also examined with a scanning micro-ellipsometer before and after contact slider experiments. It
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