title: High-intensity, high-contrast laser pulses generated from the fully diode-pumped Yb:glass laser system POLARIS.
abstract: We report on the first generation of high-contrast, 164 fs duration pulses from the laser system POLARIS reaching focused peak intensities in excess of 2×10(20) W/cm2. To our knowledge, this is the highest peak intensity reported so far that has been achieved with a diode-pumped, solid-state laser. Several passive contrast enhancement techniques have been specially developed and implemented, achieving a relative prepulse intensity smaller than 10(-8) at t=-30 ps before the main pulse. Furthermore a closed-loop adaptive-optics system has been installed. Together with angular chirp compensation, this method has led to a significant reduction of the focal spot size and an increase of the peak intensity.
authors: Helmholtz-Institute Jena, Jena 07743, Germany. marco.hornung@uni‑jena.de
authors: Marco
authors: M
authors: Hornung
authors: Sebastian
authors: S
authors: Keppler
authors: Ragnar
authors: R
authors: Bödefeld
authors: Alexander
authors: A
authors: Kessler
authors: Hartmut
authors: H
authors: Liebetrau
authors: Jörg
authors: J
authors: Körner
authors: Marco
authors: M
authors: Hellwing
authors: Frank
authors: F
authors: Schorcht
authors: Oliver
authors: O
authors: Jäckel
authors: Alexander
authors: A
authors: Sävert
authors: Jens
authors: J
authors: Polz
authors: Ajay Kawshik
authors: AK
authors: Arunachalam
authors: Joachim
authors: J
authors: Hein
authors: Malte C
authors: MC
authors: Kaluza