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Dr Julien FUCHS


2008: Habilitation à Diriger des Recherches (Université Paris-Sud, France)
1995-1998: Ph.D. in Physics (INRS Québec/LULI-CNRS/CEA)
1998: Optics Engineer (M. Sc.), École Supérieure d'Optique (Orsay, France)


2014-2016: leading scientist of a “megagrant” project (involving 21 scientists and 12 students) at the Institute of Applied Physics, Russian Academy of Sciences (Nizhny Novgorod, Russia)
1998-: CNRS researcher (currently Research Director) at LULI (École Polytechnique, France); leader of the SPRINT group from 2014
2003-2004: Associate Research Professor at the University of Nevada (Reno, NV, USA)
2002-2003: scientist in the Fusion group at General Atomics (San Diego, CA, USA)

Five major publications in the last five years

 Laboratory formation of a scaled protostellar jet by co-aligned poloidal magnetic field
B. Albertazzi [...] and J. Fuchs
Science 346, 325 (2014)
this paper not only demonstrates a mechanism proposed theoretically to explain the long-range stability of astrophysical jets, but it also shows that collimated and dense plasma jets can be produced in the laboratory, opening up many more research opportunities
 Charge equilibrium of a laser generated carbon ion beam in warm dense matter
M. Gauthier [...] and J. Fuchs
Phys. Rev. Lett. 110, 135003 (2013)
this paper presents the first measurement of charge equilibrium of a projectile transiting through in a hot, dense plasma; the method used here is the first step toward investigating ion-dense plasma interactions
 High-power laser delocalization in plasmas leading to long-range beam merging
M. Nakatsutsumi [...] and J. Fuchs
Nature Phys. 6, 1010 (2010)
first observation of laser beams non-linear coupling in a plasma
 Experimental evidence of short light pulse amplification using strong-coupling stimulated Brillouin scattering in the pump depletion regime
L. Lancia [...] and J. Fuchs
Phys. Rev. Lett. 104, 025001 (2010)
first proof that ions waves in plasmas can be used to amplify lasers
 Picosecond short-range disordering in isochorically heated aluminum at solid density
A. Mančić [...] and J. Fuchs
Phys. Rev. Lett. 104, 035002 (2010)
first measurement of ps-scale phase transition in isochorically heated matter

For a full list of my publications, click here for a list in PDF, or see orcid.org/0000-0001-9765-0787.


Collaborations in France

  • CEA-DAM, with the team of E. Lefebvre on modeling inertial fusion plasmas using ignition codes
  • CNRS, CENBG, with the team of F. Hannachi on plasma and neutron beam characterization using nuclear techniques
  • CNRS, LPP, with R. Smets on magnetic reconnection studies
  • CNRS, INSP, with the team of D. Vernhet on ion-matter interaction modeling
  • CNRS, LPGP, with G. Maynard and C. Deutsch on ion-matter interaction modeling
  • CNRS, CELIA, with the team of E. d’Humières on modeling collisionless shocks and ion acceleration
  • CNRS, LNCMI, with the team of O. Portugall on high-magnetic field systems
  • UPMC, LERMA, with A. Ciardi and C. Stéhlé on astrophysical MHD modeling

International collaborations

  • Observatory of Palermo (Italy), with R. Bonito and S. Orlando on modeling emission from astrophysical plasmas.
  • SLAC (USA), with S. Glenzer on warm dense matter generation and characterization
  • U. Reno (USA), with Y. Sentoku on modeling of high-intensity laser-matter interactions
  • INRS-EMT (Canada), with H. Pépin, J.C. Kieffer and P. Antici on ion beam generation and applications
  • ELI-Beamlines (Czech Republic), with S. Weber on plasma optics.
  • ELI-NP (Romania), with F. Negoita on neutron beam generation with lasers
  • UC San Diego (USA), with F. Beg on warm dense matter generation and characterization
  • LLNL (USA), with B. Pollock on magnetized laboratory astrophysics experiments with lasers.
  • University “La Sapienza“ of Rome (Italy), with S. Atzeni on modeling dense plasmas heating.
  • HHU (Düsseldorf, Germany), with O. Willi on plasma optics.
  • Queen’s U. (Belfast, U.K.) with M. Borghesi, on ion acceleration and applications.
  • JIHT-RAS (Russia), with the team of S. Pikuz on spectroscopy of dense plasmas.
  • IAP-RAS (Russia), with the team of A. Sergeev on magnetized laboratory astrophysics experiments with lasers and microwave sources.


In the early 2000, I worked implementing (for the first time in France) adaptive optics on a high-power laser. This was made in the frame of a PhD thesis, following which the student created a startup (PHASICS) that has developed into a successful company (http://www.phasicscorp.com/). More recently, I helped the creation (in Jan. 2014) of another company "Light Stream Labs" (http://www.lightstreamlabs.com/), which aims to promote the expertise of the LULI laboratory in the realization of laser-matter diagnostic and targets systems.


  • Higginson D. (2012-2015) currently researcher at LLNL (CA, USA)
  • Lévy A. (2009-2011) currently associate professor at University Pierre & Marie Curie in Paris (FR)
  • Nakatsutsumi M. (2008-2012) currently beamline scientist at the European XFEL facility in Hamburg (DE)
  • Robiche J. (2007-2008)
  • Romagnani L. (2006) currently CNRS researcher at LULI
  • Ruyer C. (2015) currently post-doc. associate at the Stanford Univ. (CA, USA)


Go to "Theses soutenues au LULI" and to "Prix et distinctions" for more information.

  • Albertazzi B., currently post-doc. associate at the Osaka University (JP)
  • Antici P., Marie Curie EU fellowship, currently associate professor at INRS-Québec (CA)
  • Buffechoux S., currently consultant in "energy"
  • Gauthier M., currently post-doc. associate at SLAC (CA, USA)
  • Lancia A., currently assistant professor at the Roma "La Sapienza" University (IT)
  • Mancic A., currently professor at the Nis University (RS)