Diffusing-wave spectroscopy: Difference between revisions

Revision as of 20:23, 10 August 2010

Revision as of 20:24, 10 August 2010

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'''Diffusing-wave spectroscopy''' (DWS) is an optical technique derived from [[dynamic light scattering]] (DLS) that studies the dynamics of scattered light in the limit of strong multiple scattering.<ref>

{{cite journal

|doi=10.1007/BF01303762

|author=G. Maret, P. E. Wolf

|year=1987

|title=

Multiple light scattering from disordered media. The effect of brownian motion of scatterers|journal=[[Zeitschrift für Physik B: Condensed Matter]]

|volume=65 |pages=409

}}</ref><ref>

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|year=1988

|title=

Diffusing wave spectroscopy|journal=[[Physical Review Letters]]

|volume=60 |pages=1134

|doi=10.1103/PhysRevLett.60.1134

|doi=

}}</ref> It has been widely used in the past to study colloidal [[suspension]]s, [[emulsions]], [[foams]], gels, biological media and other forms of [[soft matter]]. If carefully calibrated, DWS allows the quantitative measurement of microscopic motion in a soft material, from which the [[rheological]] properties of the complex medium can be extracted ''via'' the so-called [[microrheology]] approach.

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|title=New trends in optical microrheology of complex fluids and gels

|journal=[[Progress in Colloid and Polymer Science]]

|volume=123 |pages=141-146141–146

|doi=

}}</ref>

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|author=L. Brunel, A. Brun, P. Snabre, and L. Cipelletti

|title=

Adaptive Speckle Imaging Interferometry: a new technique for the analysis of microstructure dynamics, drying processes and coating formation|url=http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-15-23-15250

|journal=[[Optics Express]]

|volume=15 |issue=23 |pages=15250-1525915250–15259

|doiyear=2007

|doi=10.1364/OE.15.015250

}}</ref>