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SUMMARY:Surprises in multiple scattering of light from disordered material
 s
DTSTART;VALUE=DATE:20161028
DTSTAMP:20260528T051204Z
UID:6eac33acf8d0cb957a7f028d239358d380e3f48772d2828a5ad272ca
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Rémi Carminati\, Institut Langevin\, ESPCI Paris\, Pari
 s\, France\n\nhttps://www.institut-langevin.espci.fr/remi_carminati\nLight
  scattering and transport in disordered media has been extensively studied
 . On the fundamental side\, the study of light fluctuations and correlatio
 ns (speckles) reveals essential features in mesoscopic physics. On the app
 lied side\, methods and techniques have been developed for sensing and ima
 ging in complex media. In this talk we will review recent results in coher
 ent light scattering from complex materials in which unexpected behaviours
  show up. We will describe non-­‐universal features in speckle patterns
  generated by disordered metallic films producing spatially localized plas
 mon modes [1\,2]\, or by volume scattering in the Anderson localization re
 gime [3]. In the context of diffusive transport through thick scattering m
 edia\, we will show that a spatial correlation between the reflected and t
 ransmitted speckle patterns persists even for large optically thicknesses 
 materials\, a result that has implications for the control of wave transmi
 ssion through complex media [4]. We will finally address the influence of 
 correlations in the disorder on the photonic properties. We will show that
  dense and transparent materials can be designed\, at densities for which 
 a fully disordered material would be opaque due to multiple scattering [5]
 . These results bring new perspectives for the design of disordered materi
 als with specific photonic properties\, and for the control of light trans
 port in complex media. [1] R. Carminati et al.\, Surf. Sci. Rep. 70\, 1 (2
 015) [2] A. Cazé\, R. Pierrat and R. Carminati\, Phy. Rev. Lett. 110\, 06
 3903 (2013) [3] O. Leseur\, R. Pierrat\, J.J. Sáenz and R. Carminati\, Ph
 ys. Rev. A 90\, 053827 (2014) [4] N. Fayard\, A. Cazé\, R. Pierrat and R.
  Carminati\, Phys. Rev. A 92\, 033827 (2015) [5] O. Leseur\, R. Pierrat an
 d R. Carminati\, Optica 3\, 763 (2016)
LOCATION:CE 1 5 https://plan.epfl.ch/?room==CE%201%205
STATUS:CONFIRMED
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