Stephane GUIZARD

Laboratoire Interactions, Dynamiques et Lasers

Dynamique et Interactions en phase COndensée

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Chercheur au Laboratoire Interations Dynamique Lasers (LIDYL), département IRAMIS, au CEA, à Saclay.

Research topics/Sujets de recherche



Principaux résultats scientifiques - Main scientific achievements

The aim of my work is to study fundamental aspect of the interaction between intense laser pulses and solids, in particular wide band gap dielectrics.

More precisely, it is about imagine, built and drive experiment allowing to better understand all mechanisms form the initial excitation until the complete relaxation of the solid.

The experiments make use of femtosecond lasers, that give access both to “high” intensities and to real time observations, by means of time resolved pump and probe measurements, of the solid relaxation. We also use VUV pulses coming from high order harmonic generation, broadly extending the accessible energy domain, and opening possibility to achieve extreme – attosecond- time resolution.

The main scientific achievements concern:

Principales publications / Main publications:

  1. Direct observation of laser induced avalanche in SiO2, S. Guizard, A. Bildé, A. Mouskeftaras, S. Klimentov, under press.
  2. Ultrafast Breakdown of dielectrics: Energy absorption mechanisms investigated by double pulse experiments,
    S. Guizard, S. Klimentov, A. Mouskeftaras, N. Fedorov, G. Geoffroy, G. Vilmart, Applied Surf.Sci., 336(1) (2015) 206.
  3. Mechanisms of femtosecond laser ablation of dielectrics revealed by double pump-probe experiment,
    Mouskeftaras, A; Guizard, S ; Fedorov, N ; Klimentov, S; Applied Phys.A: Mat. Scie. and Process. 110 (2013) 709.
  4. Exciton-exciton interactions in CdWO4 irradiated by intense femtosecond VUV pulses,
    M. Kirm, V. Nagirnyi, E. Feldbach, M. De Grazia, B. Carré, H. Merdji, S. Guizard, J. Gaudin, G. Geoffroy, N. Fedorov, P. Martin, A. Vasil’ev, A. Belsky, Phys; Rev. B 79 (2009) 233103.
  5. Photoconductivity and photoemission studies of diamond irradiated by ultrashort VUV pulses,
    J. Gaudin, G. Geoffroy, S. Guizard, G. Petite, S.M. Klimentov, S.V. Garnov, P.A. Pivovarov, B. Carré, A. Belsky & P. Martin, Appl. Phys. B 78, p.1001, 2004.
  6. Heating of conduction band electrons by intense femtosecond laser pulses,
    A. Belsky, P. Martin, H. Bachau, A. N. Vasil'ev, B. N. Yatsenko, S. Guizard, G. Geoffroy and G. Petite, Europhys. Lett. 67 (2004) 301.
  7. Femtosecond laser ablation of transparent dielectrics: measurement and modelisation of crater profiles,
    S.Guizard, A.Semerok, J.Gaudin, M.Hashida, P.Martin, F.Quéré, App.Surf.Science 186 (2002) 364.
  8. Time-resolved study of laser-induced breakdown in dielectrics,
    F. Quéré, S. Guizard and Ph. Martin, Europhys. Lett. 56(1) (2001) 138.
  9. Infrared photoemission from a pure gold surface: Validation of the lucky-electron model,
    F. Pisani, J. L. Fabre, S. Guizard, P. Palianov, Ph. Martin, F. Glotin, and J. M. Ortega, Phys. Rev. Lett. 87 (2001) 187403.
  10. Hot-electron relaxation in quartz using high-order harmonics,
    F. Quéré, S. Guizard, Ph. Martin, G. Petite, H. Merdji, B. Carré, J-F. Hergott, and L. Le Déroff, Phys. Rev. B 61 (2000) 9883.
  11. Comment on "Ultrafast electron dynamics in femtosecond optical breakdown of dielectrics",
    Petite, G ; Guizard, S ; Martin, P ; Quere, F, Phys. Rev. Lett., 83 (1999) 5182.
  12. Subpicosecond Study of defect creation in wide-band-gap insulators,
    P. Martin, S. Guizard, Ph. Daguzan, G. Petite, P. D'Oliveira, P. Meynadier, and M. Perdrix, Phys. Rev. B 55 (1997) 5799.
  13. Electron relaxation in the conduction band of wide-band-gap oxides,
    Ph. Daguzan, P. Martin, S. Guizard, and G. Petite, Phys. Rev. B 52, (1995) 17099.
  14. Space-time observation of an electron gas in SiO2,
    P. Audebert, Ph. Daguzan, A. Dos Santos, J. C. Gauthier, J. P. Geindre, S. Guizard, G. Hamoniaux, K. Krastev, P. Martin, G. Petite, and A. Antonetti, Physical Review Letters 73, (1994) 1990.
  15. Direct observation of multiple photon absorption  by free electrons in a wide band gap insulator under strong laser irradiation,
    Ph. Daguzan, S. Guizard, K. Krastev, P. Martin, G. Petite, A. Dos Santos, and A. Antonetti, Phys. Rev. Lett. 73 (1994) 2352.

Etudiants en thèse - Former PhD students

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