DPG Phi
Verhandlungen
Verhandlungen
DPG

Hamburg 2009 – scientific programme

Parts | Days | Selection | Search | Downloads | Help

Q: Fachverband Quantenoptik und Photonik

Q 14: Ultrakurze Pulse: Erzeugung II

Q 14.8: Talk

Monday, March 2, 2009, 18:15–18:30, VMP 8 R206

Generation of 8 fs, 125 mJ Pulses by use of Optical Parametric Chirped Pulse AmplificationDaniel Herrmann1, Laszlo Veisz1, Raphael Tautz1, Franz Tavella2, Karl Schmid1,3, Alexander Buck1, Vladimir Pervak3, Michael Scharrer4, Philip Russell4, and •Ferenc Krausz1,31Max-Planck Institut für Quantenoptik, Garching, Deutschland — 2HASYLAB/DESY, Hamburg, Germany — 3Department für Physik Ludwigs-Maximilian-Universität München, Garching — 4Max-Planck Forschungsgruppe Institut für Optik, Information und Photonik, Universität Erlangen-Nürnberg, Erlangen, Deutschland

We report generation of three-cycle, 8 fs, 125 mJ optical pulses in a noncollinear optical parametric chirped-pulse amplifier (NOPCPA). These 16 TW laser pulses are compressed to within 6% of their Fourier limit. Our system starts with a broad-bandwidth frontend with improved hollow-core fiber, which delivers seed pulses with an energy of 0.4 mJ at 1 kHz repetition rate. It is optically synchronized with a Nd:YAG laser, which provides 532 nm pump pulses of 1.2 J energy and 80 ps duration at 10 Hz repetition rate. We use a negative-dispersive grism pair and an acousto-optic modulator to stretch the seed pulse to 30 ps with 3 microjoules energy for seeding the single-pass two-stage NOPCPA. After amplification, the signal energy is 150 mJ. Subsequently, the amplified signal pulse is compressed by use of glass bulks and chirped mirrors, and is characterized by using a home-built autocorrelator and a FROG device. This laser system permits exploring attosecond and high-field physics in a so far inaccessible regime.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2009 > Hamburg