Capabilities of the PULSAR ultrafast laser system for attosecond research

POSTER

Abstract

We describe the new PULSAR ultrafast laser system at the J. R. Macdonald Laboratory. In its conventional mode of operation, the Red Dragon\texttrademark\ Ti:Sapphire laser amplifier from KMLabs provides 21 fs Fourier-transform-limited (FTL), 2 mJ pulses centered around 800 nm at a repetition rate of 10 kHz. Slight modifications also support sub-40 fs pulses at an increased repetition rate (0.8 mJ, 20 kHz) or 50 fs FTL pulses (2 mJ, 10 kHz). The amplifier can be carrier-envelope-phase (CEP) stabilized with RMS noise below 300 mrad over 3 hours. Spectral broadening in a gas-filled hollow core fiber and pulse compression with chirp compensation mirrors generates 4 fs pulses. We also employ a single-shot phase meter to measure and tag the CEP of every laser shot for either free-running or CEP-stabilized laser pulses. Phase tagging and CEP-stabilization can be combined to provide increased precision in measurements using CEP-stabilized pulses.

*The PULSAR and JRML personnel have been supported by the Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy Grants DE-FG02-09ER16115 and DE-FG02-86ER13491, respectively.

Authors

  • K.J. Betsch

    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506, USA
    • JRML

  • Z. Wang

    • JRML

  • Nora G. Kling

    • JRML

  • M. K\"{u}bel

    • Max-Planck-Institut f\"{u}r Quantenoptik, D-85748 Garching, Germany

  • B. Langdon

    • KMLabs, Inc., Boulder, Colorado 80301, USA

  • D. Raymondson

    • KMLabs, Inc., Boulder, Colorado 80301, USA

  • M. Kirchner

    • KMLabs, Inc., Boulder, Colorado 80301, USA

  • C.W. Fehrenbach

    • J. R. Macdonald Laboratory (JRML), Physics Department, Kansas State University, Manhattan, KS 66506, USA

  • K.D. Carnes

    • J. R. Macdonald Laboratory (JRML), Physics Department, Kansas State University, Manhattan, KS 66506, USA

  • V. Kumarappan

    • J. R. Macdonald Laboratory (JRML), Physics Department, Kansas State University, Manhattan, KS 66506, USA

  • C. Trallero-Herrero

    • J. R. Macdonald Laboratory (JRML), Physics Department, Kansas State University, Manhattan, KS 66506, USA

  • M.F. Kling

    • J. R. Macdonald Laboratory (JRML), Physics Department, Kansas State University, Manhattan, KS 66506, USA

  • I. Ben-Itzhak

    • J. R. Macdonald Laboratory (JRML), Physics Department, Kansas State University, Manhattan, KS 66506, USA