Hamburg 2009 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 49: Ultrakurze Pulse: Anwendungen II
Q 49.8: Talk
Thursday, March 5, 2009, 15:45–16:00, VMP 6 HS-A
Femtosecond thin disk lasers with >10 μJ pulse energy for high field physics at multi-megahertz repetition rates — •T. Südmeyer1, S.V. Marchese1, C.R.E. Baer1, S. Hashimoto1, M. Golling1, G. Gingras2, B. Witzel2, and U. Keller1 — 1Department of Physics, Institute of Quantum Electronics, ETH Zurich, 8093 Zurich, Switzerland — 2Centre d'optique, photonique et laser, Université Laval, Pav. d'optique-photonique Québec G1V 0A6, Canada
Ultrafast laser oscillators have become ubiquitous in science and technology. For many years, however, their pulse energy has been limited to the nanojoule regime. Applications requiring more intense pulses relied on complex amplifier systems, which typically operate at low pulse repetition rates in the kilohertz regime. Recently, femtosecond thin-disk lasers exceeded pulse energies above the 10 μJ level, such that some of these experiments can now be driven at multi-megahertz repetition rates, which opens promising new avenues for many applications. We confirm the advantages of high field science at multi-megahertz repetition rate by photoelectron imaging spectroscopy measurements in argon and xenon and discuss further pulse energy scaling of femtosecond thin disk lasers.