OPTICAL IMAGING IN BIOLOGICAL AND COMPLEX MEDIA
Principal Investigator : Sylvain GiganThe group deals with light propagation in complex media, mainly disordered photonic systems where light is scattered in a very complex way, such as paint layers, paper, or biological tissues. Multiple scattering of coherent light generates extremely complex interference 
patterns, called speckle. But despite the enormous complexity of the scattering process, we can exploit and control light propagation, in particular thanks to spatial light modulators. Our approach is particularly interesting for imaging, light-matter interactions, signal
processing, but also as windows to understand subtle mesoscopic physics effects.
Research
News and Events
Review article
publication of our review article on applications of wavefront shaping and coherent light in Photoacoustics (and vice-versa), written by S. Gigan and E. Bossy: E. Bossy and S. Gigan, Photoacoustics with coherent light, Photoacoustics, (2016) Read more
2 PhD graduations
Two PhD students graduated this month : Thomas Chaigne (thesis entitled « Control of scattered coherent light and photoacoustic imaging : toward light focusing in deep tissue and enhanced, sub-acoustic resolution photoacoustic imaging ») and Hugo Defienne (thesis entitled "Quantum walks of Photons in disordered media"). Congrats to them and good luck !Read more
new publication in PNAS
PNAS "Invariance property of wave scattering through disordered media" in collaboration with TU Wien (Group Stefan Rotter) and Institut Langevin (Group Rémi Carminati). Read more 
a star(tup) is born
A spin-off company from the group "LightOn", aiming at performing optical computation "at the speed of light" has entered incubation Read more 
Let there be lab
moving is not completely finished, but our new lab is already full and buzzing with activityRead more
Colloquium talk
Video of Sylvain Gigan's colloquium, covering last year's research of the group, at the colloquium of the physics department of ENS Read more 
visiting Professor Rafael Piestun
We have welcomed Rafael Piestun (Professor at ECE University of Colorado, Boulder) in the group for 3 month. Read more 
visiteur Professor Jerome Mertz (BU)
Jerome Mertz, professor at Boston University, is visiting the group during the month of July 2016. Read more 
visiting Professor Xiaopeng Shao (Xi'an University)
We have welcome Prof. Shao, from Xidian university, for the month of November 2016.Read more
A star is born
Mickael Mounaix, our second year PhD student, seems to have taken a second job in male modeling and is featured in the call for paper of the upcoming CLEO conference 2017. Submit now 🙂Read more
Xmas group picture
Xmas LKB party at college de France, (partial) group picture. Left to right: Benneth, Tom, Rebecca, Mickael, Saroch, Tengfei, Tom, Notre-Dame.Read more
viewpoint : optical microscopy aims deep
a viewpoint in Nature Photonics on the roots and future of our field Read more 
Review of Modern Physics: Mesoscopic Physics meet wave control
long awaited, our review paper with Stefan Rotter is finally out in APS's Review of Modern Physics, and made the cover "Light fields in complex media: Mesoscopic scattering meets wave control" Read more 
Nanophotonics Sciencecamp
during the complex nanophotonics Sciencecamp http://sciencecamp.eu/, several current and past members got together, and we could take and 'past a present' group picture, with only few (dearly missed) persons!Read more
thesis Defense: Mickael Mounaix
Mickael (very) successfully defended his thesis on Nov 8th, entitled: "Matricial approaches for spatio-temporal control of light in multiple scattering media". Congratulation Dr. Mounaix and good luck for your future endeavors!Read more
Science publication : a surprising invariant of light in complex media
5 years in the making, our result on experimentally verifying a surprising invariance of light in complex media, namely that the average path length is independent of disorder, is finally published ... in Science! check it out! Read more 
A review article in the "photoniques" journal
our work is featured (in french) in a review Article by Mickael, Hugo, an Sylvain in a review article "Photoniques" of the French Optical Society. Read more 
Publications
Observation of mean path length invariance in light-scattering media
Light fields in complex media: Mesoscopic scattering meets wave control
Spatiotemporal coherent control of light through a multiple scattering medium with the multispectral transmission matrix
Transmission-matrix-based point-spread-function engineering through a complex medium
JOB OFFERS
We are always looking for talented & motivated scientists and students to join our group.
Check the open positions or send us your CV and motivation letter for application.
CONTACT
ENS
Adresse:
Laboratoire Kastler-BrosselDépartement de Physique Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05
Contact:
Sylvain Gigan
