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of 15
pro vyhledávání: '"Alexander Laschitsch"'
Publikováno v:
Journal of Applied Physics. 85:3759-3765
We report on the application of quartz crystal resonators for friction measurements in the MHz regime. The dissipative processes are studied by approaching a small sphere to the quartz surface and measuring the shifts in frequency and bandwidth as a
Autor:
Alexander Laschitsch, Charles Bouchard, Jürgen Rühe, Martin Schimmel, Jörg Habicht, Diethelm Johannsmann
Publikováno v:
Macromolecules. 32:1244-1251
We have investigated the sorption behavior of polystyrene brushes with thicknesses of 10−200 nm in toluene vapor. The sorption curve displays a kink, which is attributed to the solvent-induced glass transition. The derivative of the sorption curve
Autor:
Diethelm Johannsmann, Béatrice Guerrier, Charles Bouchard, Catherine Allain, Anne-Claire Saby, Alexander Laschitsch
Publikováno v:
Journal of Applied Polymer Science. 69:2235-2246
We report on desorption measurements on polymeric thin films coated onto quartz crystal resonators. Due to the high sensitivity of quartz crystal microbalances, the experiments can be performed on very thin films, which have small diffusion time cons
Autor:
Larry E. Bailey, Diethelm Johannsmann, Curtis W. Frank, George W. Tyndall, Alexander Laschitsch
Publikováno v:
Applied Physics Letters. 78:2601-2603
The high-frequency frictional properties of thin lubricating layers of perfluoropolyethers coated onto the surface of quartz-crystal resonators were probed by measuring the increase in resonance bandwidth when the quartz surface comes into contact wi
Publikováno v:
Proceedings of the 1999 Joint Meeting of the European Frequency and Time Forum and the IEEE International Frequency Control Symposium (Cat. No.99CH36313).
We report on the interaction between quartz resonators and spheres approaching one of their surfaces. As firm contact is established, the resonance frequency increases, indicating an increased stiffness of the quartz-sphere system. When contact is ju
Employing quartz crystal resonators, we have measured the elastic compliance of thin polymers films doped with an azobenzene dye. From a comparison of the shifts of resonance frequency on different acoustic overtones of the resonator, the films’ el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e8d01839aaa1f2d1a133727b3ca9b32
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/18925
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/18925
Conference
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Akademický článek
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Publikováno v:
Advanced Optics Using Aspherical Elements; 1/ 1/2008, Vol. PM173, p391-396, 6p
Autor:
Laschitsch, Alexander, Bailey, Larry E., Tyndall, George W., Frank, Curtis W., Johannsmann, Diethelm
Publikováno v:
Applied Physics Letters; 4/23/2001, Vol. 78 Issue 17, p2601, 3p, 1 Diagram, 1 Graph