J
Jan Rothhardt
Researcher at University of Jena
Publications - 221
Citations - 4843
Jan Rothhardt is an academic researcher from University of Jena. The author has contributed to research in topics: Fiber laser & High harmonic generation. The author has an hindex of 37, co-authored 203 publications receiving 4272 citations. Previous affiliations of Jan Rothhardt include Schiller International University & GSI Helmholtz Centre for Heavy Ion Research.
Papers
More filters
Journal ArticleDOI
Extended single-mode photonic crystal fiber lasers
Jens Limpert,Oliver Schmidt,Jan Rothhardt,Fabian Röser,Thomas Schreiber,Andreas Tünnermann,S. Ermeneux,P. Yvernault,F. Salin +8 more
TL;DR: The robust single-transverse-mode propagation in a passive 100 microm core fiber with a similar design reveals the potential of extended large-mode-area photonic crystal fibers.
Journal ArticleDOI
Millijoule pulse energy high repetition rate femtosecond fiber chirped-pulse amplification system
Fabian Röser,Tino Eidam,Jan Rothhardt,Oliver Schmidt,Damian N. Schimpf,Jens Limpert,Andreas Tünnermann +6 more
TL;DR: To the knowledge, this work presents the highest pulse energy ever extracted from fiber based femtosecond laser systems, and a nearly 2 orders of magnitude higher repetition rate than in previously published millijoule-level fiber CPA systems.
Journal ArticleDOI
Fiber chirped-pulse amplification system emitting 3.8 GW peak power.
Tino Eidam,Jan Rothhardt,Fabian Stutzki,Florian Jansen,Steffen Hädrich,Henning Carstens,Cesar Jauregui,Jens Limpert,Andreas Tünnermann +8 more
TL;DR: A fiber chirped- pulse amplification system capable of generating nearly transform-limited sub 500 fs pulses with 2.2 mJ pulse energy at 11 W average power and a record peak power of 3.8 GW could be achieved by combining active phase shaping with an efficient reduction of the acquired nonlinear phase.
Journal ArticleDOI
Octave-spanning OPCPA system delivering CEP-stable few-cycle pulses and 22 W of average power at 1 MHz repetition rate
TL;DR: An OPCPA system delivering CEP-stable pulses with a pulse duration of only 1.7 optical cycles at 880 nm wavelength is reported on.
Journal ArticleDOI
High photon flux table-top coherent extreme-ultraviolet source
Steffen Hädrich,Steffen Hädrich,Arno Klenke,Arno Klenke,Jan Rothhardt,Jan Rothhardt,Manuel Krebs,Armin Hoffmann,Oleg Pronin,Vladimir Pervak,Jens Limpert,Jens Limpert,Jens Limpert,Andreas Tünnermann,Andreas Tünnermann,Andreas Tünnermann +15 more
TL;DR: In this paper, a new table-top coherent extreme ultraviolet (EUV) source based on phase-matched high-harmonic generation using a fiber laser is presented. But the authors did not specify the number of photons in the 25 −40 eV range.