Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2005-05-17
Physics
Condensed Matter
Soft Condensed Matter
submitted to Applied Optics
Scientific paper
10.1364/AO.45.001756
We introduce a charge coupled device (CCD) camera based detection scheme in dynamic light scattering that provides information on the single-scattered auto-correlation function even for fairly turbid samples. It is based on the single focused laser beam geometry combined with the selective cross correlation analysis of the scattered light intensity. Using a CCD camera as a multispeckle detector we show how spatial correlations in the intensity pattern can be linked to single and multiple scattering processes. Multiple scattering suppression is then achieved by an efficient cross correlation algorithm working in real time with a temporal resolution down to 0.2 seconds. Our approach allows access to the extensive range of systems that show low-order scattering by selective detection of the singly scattered light. Model experiments on slowly relaxing suspensions of titanium dioxide in glycerol were carried out to establish the validity range of our approach. Successful application of the method is demonstrated up to a scattering coefficient of more than $\mu_s = 5$ cm$^{-1}$ for the sample size of L=1 cm.
Bhat Suresh
Scheffold Frank
Schurtenberger Peter
Zakharov Pavel
No associations
LandOfFree
Multiple scattering suppression in dynamic light scattering based on a digital camera detection scheme does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Multiple scattering suppression in dynamic light scattering based on a digital camera detection scheme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple scattering suppression in dynamic light scattering based on a digital camera detection scheme will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-599455