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  1. No Access

    Article

    The ramp-up of interstellar medium enrichment at z > 4

    Fluorine is one of the most interesting elements for nuclear and stellar astrophysics1,2. Fluorine abundance was first measured for stars other than the Sun in 19921, then for a handful of metal-poor stars3, whic...

    M. Franco, K. E. K. Coppin, J. E. Geach, C. Kobayashi, S. C. Chapman… in Nature Astronomy (2021)

  2. Article

    Open Access

    Characterisation of irradiated thin silicon sensors for the CMS phase II pixel upgrade

    The high luminosity upgrade of the Large Hadron Collider, foreseen for 2026, necessitates the replacement of the CMS experiment’s silicon tracker. The innermost layer of the new pixel detector will be exposed ...

    W. Adam, T. Bergauer, E. Brondolin, M. Dragicevic… in The European Physical Journal C (2017)

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  3. No Access

    Article

    Femtosecond filament amplification in liquids

    We study the femtosecond filamentation in a liquid amplifying medium, sulphorhodamine 640 in a methanol solvent. In the presence of population inversion, the energy of the filament increases while its diameter...

    C. D’Amico, B. Prade, M. Franco, A. Mysyrowicz in Applied Physics B (2006)

  4. No Access

    Article

    Enhanced harmonic conversion efficiency in the self-guided propagation of femtosecond ultraviolet laser pulses in argon

    Harmonic generation during the self-guided propagation of femtosecond ultraviolet (UV) laser pulses (248-nm, 450-fs) in argon is investigated. The third (82.7-nm) and fifth (49.6-nm) harmonics are generated in...

    N. Kortsalioudakis, M. Tatarakis, N. Vakakis, S.D. Moustaizis… in Applied Physics B (2005)

  5. No Access

    Article

    Long-range self-channeling of infrared laser pulses in air: a new propagation regime without ionization

    We report long-range self-channeling in air of multiterawatt femtosecond laser pulses with large negative initial chirps. The peak intensity in the light channels is at least one order of magnitude lower than ...

    G. Méchain, A. Couairon, Y.-B. André, C. D’Amico, M. Franco, B. Prade… in Applied Physics B (2004)

  6. No Access

    Article

    Calorimetric detection of THz radiation from femtosecond filaments in air

    Calorimetric measurements of the THz radiation from plasma filaments created in air by intense IR fs laser pulses were performed. The decay kinetics of the THz radiation from this extended plasma source is sho...

    G. Méchain, S. Tzortzakis, B. Prade, M. Franco, A. Mysyrowicz… in Applied Physics B (2003)

  7. No Access

    Article

    Concatenation of plasma filaments created in air by femtosecond infrared laser pulses

    We report the first observation of the attachment of two single plasma filaments created collinearly in the atmosphere by IR femtosecond laser pulses. The linked filamentary structure is electrically conductiv...

    S. Tzortzakis, G. Méchain, G. Patalano, M. Franco, B. Prade… in Applied Physics B (2003)

  8. No Access

    Article

    Numerical simulations of the nonlinear propagation of femtosecond optical pulses in gases

    A two-dimensional axisymmetric model of the propagation of intense femtosecond laser pulses through dispersion-free transparent media is described. The effects of diffraction, nonlinear Kerr effect (instantane...

    A. Chiron, B. Lamouroux, R. Lange… in The European Physical Journal D - Atomic, … (1999)