http://www.cnr.it/ontology/cnr/individuo/prodotto/ID1095
Use of dynamic schlieren interferometry to study fluctuations during free diffusion (Articolo in rivista)
- Type
- Label
- Use of dynamic schlieren interferometry to study fluctuations during free diffusion (Articolo in rivista) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Alternative label
Croccolo, F; Brogioli, D; Vailati, A; Giglio, M; Cannell, DS (2006)
Use of dynamic schlieren interferometry to study fluctuations during free diffusion
in Applied optics
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Croccolo, F; Brogioli, D; Vailati, A; Giglio, M; Cannell, DS (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- INFM, CNR, I-20133 Milan, Italy; Univ Milan, Dipartimento Fis, I-20133 Milan, Italy; Univ Calif Santa Barbara, Dept Phys & iQCD, Santa Barbara, CA 93106 USA (literal)
- Titolo
- Use of dynamic schlieren interferometry to study fluctuations during free diffusion (literal)
- Abstract
- We used a form of schlieren interferometry to measure the mean-squared amplitude and temporal autocorrelation function of concentration fluctuations driven by the presence of a gradient during the free diffusion of a urea solution into water. By taking and processing sequences of images separated in time by less than the shortest correlation time of interest, we were able to simultaneously measure dynamics at a number of different wave vectors. The technique is conceptually similar to the shadowgraph method, which has been used to make similar measurements, but the schlieren method has the advantage that the transfer function is wave-vector independent rather than oscillatory. (c) 2006 Optical Society of America. (literal)
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