Reference : Brillouin light scattering during shearing of complex fluids

	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/10993/47154

Title :	Brillouin light scattering during shearing of complex fluids
Language :	English
Author, co-author :	Lehr, Claudius Moritz [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)]
	Astasheva, Olga [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)]
	Baller, Jörg [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit]
Publication date :	24-May-2021
Journal title :	Optics Express
Publisher :	OSA
Volume :	29
Issue/season :	11
Pages :	16019-16031
Peer reviewed :	Yes (verified by ORBilu)
Audience :	International
ISSN :	1094-4087
e-ISSN :	1094-4087
Keywords :	[en] Brillouin scattering ; Dynamic light scattering ; Scattering measurement ; Optical measurement ; Light scattering ; Inelastic scattering
Abstract :	[en] A setup for the optical measurement of elastic properties during the flow of complex fluids is presented. Brillouin light scattering and rotational rheology are combined in order to simultaneously measure the high-frequency longitudinal elastic modulus in a classical rheometer along with the zero-shear viscosity. Brillouin light scattering allows for the contactless determination of local elastic properties. First measurements of a diluted polymer system suggest a homogeneous orientation of polymer molecules throughout the sample as soon as a critical shear rate has been reached at one spatial position.
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/10993/47154
DOI :	10.1364/OE.425029
Other URL :	http://www.opticsexpress.org/abstract.cfm?URI=oe-29-11-16019

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