Enviaments recents

  • High power multi-color OPCPA source with simultaneous femtosecond deep-UV to mid-IR outputs 

    Baudisch, M.; Wolter, B.; Pullen, M.; Hemmer, M.; Biegert, Jens (OSA, 2016-08-01)
    Article
    Accés obert
    Many experimental investigations demand synchronized pulses at various wavelengths, ideally with very short pulse duration and high repetition rate. Here we describe a femtosecond multi-color optical parametric chirped ...
  • High-power sub-two-cycle mid-infrared pulses at 100 MHz repetition rate 

    Pupeza, I.; Sánchez, D.; Zhang, J.; Lilienfein, N.; Seidel, M.; Karpowicz, N.; Paasch-Colberg, T.; Znakovskaya, I.; Pescher, M.; Schweinberger, W.; Pervak, V.; Fill, E.; Pronin, O.; Wei, Z.; Krausz, F.; Apolonski, A.; Biegert, Jens (Nature Publishing Group, 2015-09-21)
    Article
    Accés restringit per política de l'editorial
    Powerful coherent light with a spectrum spanning the mid-infrared (MIR) spectral range is crucial for a number of applications in natural as well as life sciences, but so far has only been available from large-scale ...
  • Ultrashort pulse generation in the mid-IR 

    Pires, H.; Baudisch, H.; Sanchez, D.; Hemmer, M.; Biegert, Jens (Science Direct, 2015-09-01)
    Article
    Accés restringit per política de l'editorial
    Recent developments in laser sources operating in the mid-IR (View the MathML source) have been motivated by the numerous possibilities for both fundamental and applied research. One example is the ability to unambiguously ...
  • Sub-4-optical-cycle, 340 MW peak power, high stability mid-IR source at 160 kHz 

    Baudisch, M.; Pires, H.; Ishizuki, H.; Taira, T.; Hemmer, M.; Biegert, Jens (IOP, 2015-09-03)
    Article
    Accés restringit per política de l'editorial
    We present the state of the art of our development of a unique high average power mid-infrared (IR) optical parametric chirped pulse amplification (OPCPA) source. The system delivers passively carrier-envelope phase ...
  • Imaging an aligned polyatomic molecule with laser-induced electron diffraction 

    Pullen, Michael G.; Wolter, Benjamin; Le, Anh-Thu; Baudisch, Matthias; Hemmer, Michaël; Senftleben, Arne; Schröter, Claus Dieter; Ullrich, Joachim; Moshammer, Robert; Lin, C. D.; Biegert, Jens (Nature Publishing Group, 2015-06-24)
    Article
    Accés obert
    Laser-induced electron diffraction is an evolving tabletop method that aims to image ultrafast structural changes in gas-phase polyatomic molecules with sub-Ångstro¨m spatial and femtosecond temporal resolutions. Here ...
  • Strong-Field Physics with Mid-IR Fields 

    Wolter, Benjamin; Pullen, Michael G.; Baudisch, Matthias; Sclafani, Michele; Hemmer, Michaël; Senftleben, Arne; Schröter, Claus Dieter; Ullrich, Joachim; Moshammer, Robert; Biegert, Jens (APS, 2015-06-26)
    Article
    Accés obert
    Strong-field physics is currently experiencing a shift towards the use of mid-IR driving wavelengths. This is because they permit conducting experiments unambiguously in the quasistatic regime and enable exploiting the ...
  • Importance of intensity-to-phase coupling for water-window high-order-harmonic generation with few-cycle pulses 

    Teichmann, Stephan M.; Silva, Francisco; Cousin, Seth L.; Bieger, Jens (APS, 2015-06-12)
    Article
    Accés obert
    We present half-cycle cutoff features in the water window using high-order-harmonic generation (HHG) with two-cycle, carrier-envelope-phase-controlled pulses at 1.85 μm in a high-pressure neon target. A relative ...
  • Spatiotemporal isolation of attosecond soft X-ray pulses in the water window 

    Silva, Francisco; Teichmann, Stephan M.; Cousin, Seth L.; Hemmer, Michael; Biegert, Jens (Nature Publishing group, 2015-03-19)
    Article
    Accés obert
    Attosecond pulses at photon energies that cover the principal absorption edges of the building blocks of materials are a prerequisite for time-resolved probing of the triggering events leading to electronic dynamics such ...
  • 2-μm wavelength, high-energy Ho:YLF chirped-pulse amplifier for mid-infrared OPCPA 

    Hemmer, M.; Sánchez, D.; Jelínek, M.; Smirnov, Vadim; Jelinkova, H.; Kubeček, V.; Biegert, Jens (OSA, 2015-02-02)
    Article
    Accés obert
    A 2-μm wavelength laser delivering up to 39-mJ energy, ∼10 ps duration pulses at 100-Hz repetition rate is reported. The system relies on chirped pulse amplification (CPA): a modelocked Er:Tm:Ho fiber-seeder is followed ...
  • Strong-field plasmonic photoemission in the mid-IR at <1 GW/cm2 intensity 

    Teichmann, S. M.; Rácz, P.; Ciappina, M. F.; Pérez-Hernández, J. A.; Thai, A.; Fekete, J.; Elezzabi, A. Y.; Veisz, L.; Biegert, J.; Dombi, P. (Nature Publishing group, 2015-01-12)
    Article
    Accés obert
    We investigated nonlinear photoemission from plasmonic films with femtosecond, mid-infrared pulses at 3.1 mm wavelength. Transition between regimes of multi-photon-induced and tunneling emission is demonstrated at an ...

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