SAMOP 2023 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 7: Poster I
Q 7.3: Poster
Montag, 6. März 2023, 16:30–19:00, Empore Lichthof
Towards generation of high power 2 µm pulses in the few cycle regime — •Jon Morten Drees1, David Zuber1,2, Ihar Babushkin1,2,3, and Uwe Morgner1,2,4 — 1Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany — 2Cluster of Excellence PhoenixD (Photonics, Optics, and Engineering-Innovation Across Disciplines) 30167 Hannover, Germany — 3Max Born Institute, Max-Born-Straße 2a, 10117 Berlin, Germany — 4Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany
Ultrashort pulses in the short-wavelength infrared (SWIR) can be used for various applications such as high harmonic generation or an all-optical Attoclock. Most of the systems that provide such radiation are built with laser materials based on thulium or Cr:ZnSe. While such Systems can achieve high output powers they usually have relatively long pulse durations and require additional pulse compression to reach the few cycle regime. Due to this disadvantage we wanted to go another way to create 2 µm radiation. A regenerative amplifier, providing 750 µJ pulses at 1030 nm with a repetition rate of 100 kHz, is used to generate white-light at 700 nm, which is amplified in a non-collinear optical parametric amplifier (NOPA). By difference frequency generation with the 1030 nm pump a 2 µm seed can be generated efficiently. With two additional NOPA stages the SWIR pulse can then be amplified to achieve high pulse energies. This approach will allow us to achieve pulse durations of approximately 20 fs with pulse energies of up to 100 µJ.