ESPCI web site
PMMH’s weekly seminar is held every Friday at 11 am (map)
Stéphane Perrard
Etienne Reyssat
Virgile Thiévenaz
PMMH
BARRE CASSAN
BAT A 1ER ETAGE CASE 18
7 QUAI SAINT BERNARD
75005 PARIS
France
Tel : (33) 1 40 79 45 22
Séminaire PMMH Rémi Carminati (Institut Langevin, ESPCI)
Seeing through disordered scattering materials
The propagation of coherent light through a scattering medium produces speckle patterns in reflection and transmission. Despite the apparent randomness of the speckle patterns, a statistical correlation between the reflected and transmitted intensities survives even in the multiple scattering regime. This mutual information opens up new possibilities for sensing and imaging through scattering media. As an illustrative example, we will show how to image a target located behind an opaque scattering layer using the speckle pattern measured in reflection.
The scattering pattern is also dependent on the presence of partial order in the disordered medium. We will discuss light propagation in partially ordered materials made of discrete scatterers in a transparent matrix. We will show how transparency can emerge from specific types of correlated disorders, and present recent approaches to the fabrication of partially ordered materials by self-organization processes.
The audience is composed of people with rather heterogeneous backgrounds including specialists in solids, fluids, granular flows, statistical physics... so the idea is to keep your talk understandable by people not necessarily working in your field... The seminar time slot runs from 11am to noon so the best is to make the talk last around 45 minutes to leave some time for discussion.
- Séminaires ESPCI-ENS de biophysique
- Séminaires du Département de Physique de l’ENS
- Séminaires du Laboratoire d’Hydrodynamique de l’X
- Séminaire de Mécanique d’Orsay (page web FAST)
- Séminaire de Mécanique d’Orsay (page web LIMSI)
- Séminaire de Mécanique des Fluides de l’Institut Jean le Rond d’Alembert
- Séminaires du laboratoire MSC, Paris VII
- Séminaires Gulliver
Link to cofee seminar (internal, every Thursday)
