LKB - Optical Imaging in biogical and complex media


Principal Investigators : Sylvain Gigan & Hilton Barbosa de Aguiar
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Postdoctoral Researcher
Visiting Students
PhD Student
  • Sylvain Gigan
    Professor at Sorbonne University
  • Dr. Lorenzo Valzania
  • Dr. Hilton B. de Aguiar
    CNRS researcher
  • Dr. Fernando Soldevila Torres
  • Lei Zhu
  • Dr. Gianni Jacucci
  • Adrian Makowski
    visitor. Warsaw University.
  • Lea Chibani
  • Louis Delloye
  • Shupeng Zhao
  • Dr. Fei Xia
    personal website :
  • Dr. YoonSeok Baek
  • Dr. Raj Pandya
    Junior Research Fellow at Clare College, University of Cambridge
  • Dr. Clémence Gentner
  • Dr. Jianqi Hu
  • Dr. Caio Rímoli
  • Dr. Tengfei Wu

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)

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 !
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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).

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

Let there be lab

moving is not completely finished, but our new lab is already full and buzzing with activity
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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

visiting Professor Rafael Piestun

We have welcomed Rafael Piestun (Professor at ECE University of Colorado, Boulder) in the group for 3 month.

visiteur Professor Jerome Mertz (BU)

Jerome Mertz, professor at Boston University, is visiting the group during the month of July 2016.

visiting Professor Xiaopeng Shao (Xi'an University)

We have welcome Prof. Shao, from Xidian university, for the month of November 2016.
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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 🙂
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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.
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viewpoint : optical microscopy aims deep

a viewpoint in Nature Photonics on the roots and future of our field

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"

Nanophotonics Sciencecamp

during the complex nanophotonics Sciencecamp, several current and past members got together, and we could take and 'past a present' group picture, with only few (dearly missed) persons!
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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!
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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!

A review article in the

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.

PhD Prize for Mickael Mounaix

Mickael Mounaix has been awarded the "Chancellerie Prize" of the Paris Universities in the category "Science".

Thesis Defense : Tom Sperber

our PhD student, Tom Sperber, successfully defended his thesis, co-supervised by Dr. Patrick Sebbah from Institut Langevin and Bar-Ilan University, entitled : Control of Light in Disordered Media with Gain : Wavefront Shaping the Pump in Fiber Amplifiers and Fiber Lasers". Congrats!
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Programmable linear quantum networks with a multimode fibre

Saroch Leedumrongwatthanakun, Luca Innocenti, Hugo Defienne, Thomas Juffmann, Alessandro Ferraro, Mauro Paternostro & Sylvain Gigan, Nature Photonics (2019)

Light fields in complex media: Mesoscopic scattering meets wave control

Stefan Rotter, Sylvain Gigan, Rev. Mod. Phys. 89, 015005

Observation of mean path length invariance in light-scattering media

R. Savo, R. Pierrat, U. Najar, R. Carminati, S. Rotter, S. Gigan, Science, 358, 765 (2017)



We welcome application from outstanding candidates, interested by the work of our group. Please contact us to learn about other potential openings on various projects.

Master and Bachelor

You can find specific internship offers on the following website:

We also welcome application from skilled and motivated candidates on any ongoing projects of the group. Please apply directly via email with CV and motivation letter.



We have no specific position at the moment, but welcome application from skilled and motivated candidates.


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.





Laboratoire Kastler-Brossel Département de Physique Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05

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Sylvain Gigan 

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Hilton Barbosa de Aguiar

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Nos Tutelles et Partenaires

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