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Andreas Tünnermann
Researcher at Fraunhofer Society
Publications - 1757
Citations - 48543
Andreas Tünnermann is an academic researcher from Fraunhofer Society. The author has contributed to research in topics: Fiber laser & Laser. The author has an hindex of 97, co-authored 1738 publications receiving 43757 citations. Previous affiliations of Andreas Tünnermann include Schiller International University & University of Jena.
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Journal ArticleDOI
100 W average power femtosecond laser at 343 nm.
Jan Rothhardt,Carolin Rothhardt,Michael Müller,Arno Klenke,Marco Kienel,Stefan Demmler,Tino Elsmann,Manfred Rothhardt,Jens Limpert,Andreas Tünnermann +9 more
TL;DR: A femtosecond laser system delivering up to 100 W of average power at 343 nm and a nearly diffraction-limited beam quality is achieved, despite the high thermal load to the nonlinear crystals.
Journal ArticleDOI
Femtosecond Enhancement Cavities in the Nonlinear Regime.
Simon Holzberger,Simon Holzberger,Nikolai Lilienfein,Nikolai Lilienfein,Henning Carstens,Henning Carstens,Tobias Saule,Tobias Saule,Maximilian Högner,Maximilian Högner,Fabian Lücking,Michael K. Trubetskov,Volodymyr Pervak,Tino Eidam,Jens Limpert,Andreas Tünnermann,Ernst Fill,Ernst Fill,Ferenc Krausz,Ferenc Krausz,Ioachim Pupeza,Ioachim Pupeza +21 more
TL;DR: This work combines high-finesse optical resonators and spatial-spectral interferometry to a highly phase-sensitive investigation technique for nonlinear light-matter interactions, predicting the feasibility of driving intracavity high-order harmonic generation far beyond intensity limitations observed in state-of-the-art systems.
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Self-compression in a solid fiber to 24 MW peak power with few-cycle pulses at 2 μm wavelength.
Christian Gaida,Martin Gebhardt,Fabian Stutzki,Cesar Jauregui,Jens Limpert,Andreas Tünnermann +5 more
TL;DR: A compact, fiber-based, ultrashort-pulse laser system in the 2 μm wavelength region delivering 24 fs pulse duration with 24 MW pulse peak power and 24.6 W average power is reported.
Journal ArticleDOI
Fiber-based source for multiplex-CARS microscopy based on degenerate four-wave mixing.
Thomas Gottschall,Martin Baumgartl,Aude Sagnier,Jan Rothhardt,Cesar Jauregui,Jens Limpert,Andreas Tünnermann +6 more
TL;DR: A fiber-based laser source for multiplex coherent anti-Stokes Raman scattering (CARS) microscopy is presented, a significant step towards a simple and powerful all-fiber, maintenance-free multiplex-CARS source for real-world applications outside a laboratory environment.
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Non-hexagonal Large-Pitch Fibers for enhanced mode discrimination
TL;DR: It is shown that a pentagonal design can increase the mode discrimination and, simultaneously, also improve the beam quality of Large-Pitch Fibers with mode field diameters well beyond 100 µm.