Dr. Jan Rothhardt
Ph.D. Student/Staff Member of IAP at Helmholtz Institute Jena
SPIE Involvement:
Author
Publications (27)

Proceedings Article | 13 March 2024 Poster + Paper
L. Licht, C. Liu, W. Eschen, D. Penagos Molina, J. Reinhard, S. Kaleta, J. Limpert, C. Eggeling, J. Rothhardt
Proceedings Volume 12857, 128570I (2024) https://doi.org/10.1117/12.3002264
KEYWORDS: Extreme ultraviolet, Fluorescence, Infrared imaging, Biological samples, Fluorescence microscopy, Biological imaging, Light sources and illumination, Microscopy, Image resolution, Visible radiation

Proceedings Article | 9 August 2023 Paper
J. Rothhardt, Wilhelm Eschen, Cheng Liu, Daniel Penagos M., Robert Klas, Jens Limpert
Proceedings Volume 12621, 126210V (2023) https://doi.org/10.1117/12.2678398
KEYWORDS: Extreme ultraviolet, Scattering, Biological samples, Biological imaging, Microscopes, Silicon, Integrated circuits, Chemical composition, Stars, Semiconductors

Proceedings Article | 11 November 2022 Presentation
Wilhelm Eschen, Lars Loetgering, Vittoria Schuster, Robert Klas, Alexander Kirsche, Lutz Berthold, Michael Steinert, Thomas Pertsch, Michael Krause, Jens Limpert, Jan Rothhardt
Proceedings Volume PC12292, PC122920O (2022) https://doi.org/10.1117/12.2641705
KEYWORDS: Extreme ultraviolet, Microscopy, Ultraviolet radiation, Stars, Silicon, Silica, Scattering, Refractive index, Microscopes, Metrology

Proceedings Article | 4 March 2022 Presentation
Proceedings Volume PC11980, PC1198006 (2022) https://doi.org/10.1117/12.2608635
KEYWORDS: Ultrafast phenomena, Ultrafast lasers, Laser systems engineering, High power lasers, Semiconductor lasers, Mid-IR, Laser applications, Fiber lasers, Fiber amplifiers, Diodes

Proceedings Article | 5 March 2021 Presentation
Proceedings Volume 11676, 116760N (2021) https://doi.org/10.1117/12.2577478
KEYWORDS: Laser systems engineering, Pulsed laser operation, Laser stabilization, High power lasers, Energy efficiency, Ultrafast lasers, Thulium, Laser applications, Fiber lasers, Fiber amplifiers

Proceedings Article | 5 March 2021 Presentation
Proceedings Volume 11676, 116761C (2021) https://doi.org/10.1117/12.2577496
KEYWORDS: High harmonic generation, Coherence imaging, X-rays, Ultrafast phenomena, Statistical analysis, Laser applications, Fiber lasers, Extreme ultraviolet

Proceedings Article | 5 March 2021 Presentation + Paper
Martin Gebhardt, Tobias Heuermann, Robert Klas, Alexander Kirsche, Chang Liu, Ziyao Wang, Mathias Lenski, Christian Gaida, Cesar Jauregui, Jose Antonio-Lopez, Axel Schülzgen, Rodrigo Amezcua-Correa, Jan Rothhardt, Jens Limpert
Proceedings Volume 11676, 116761D (2021) https://doi.org/10.1117/12.2578529
KEYWORDS: Carbon, X-rays, High harmonic generation, Ultrafast phenomena, Ultrafast laser spectroscopy, Spectroscopy, Fiber lasers, Coherence imaging, Absorption spectroscopy, X-ray sources

Proceedings Article | 5 March 2021 Paper
Proceedings Volume 11676, 116761B (2021) https://doi.org/10.1117/12.2578527
KEYWORDS: Coherence imaging, Extreme ultraviolet, Ultrafast imaging, Synchrotrons, Spatial resolution, Photomasks, Lithography, Temporal resolution, Temporal coherence, Metrology

Proceedings Article | 21 February 2020 Paper
Martin Gebhardt, Tobias Heuermann, Ziyao Wang, Mathias Lenski, Christian Gaida, Robert Klas, Alexander Kirsche, Steffen Hädrich, Jan Rothhardt, Jens Limpert
Proceedings Volume 11260, 112600U (2020) https://doi.org/10.1117/12.2546151
KEYWORDS: Fiber lasers, Laser systems engineering, Argon, X-rays, Ultrafast phenomena, Pulsed laser operation, Spectroscopy, Optical filters, Aluminum, Harmonic generation

Proceedings Article | 7 March 2019 Paper
Martin Gebhardt, Christian Gaida, Tobias Heuermann, Cesar Jauregui, Jose Antonio-Lopez, Axel Schulzgen, Rodrigo Amezcua-Correa, Jan Rothhardt, Jens Limpert
Proceedings Volume 10897, 108971E (2019) https://doi.org/10.1117/12.2509650
KEYWORDS: Fiber lasers, Dispersion, Ultrafast phenomena, Laser sources, Laser systems engineering, Short wave infrared radiation, Mid-IR, Pulsed laser operation, Silica, Photonics

Proceedings Article | 17 July 2015 Paper
Jan Rothhardt, Steffen Hädrich, Manuel Krebs, Jens Limpert, Andreas Tünnermann
Proceedings Volume 9524, 95242O (2015) https://doi.org/10.1117/12.2190419
KEYWORDS: Extreme ultraviolet, High harmonic generation, Neon, Mirrors, Optical fibers, Helium, High power fiber lasers, Femtosecond fiber lasers, Xenon, Phase matching

Proceedings Article | 4 March 2015 Paper
Arno Klenke, Steffen Hädrich, Tino Eidam, Jan Rothhardt, Marco Kienel, Armin Hoffmann, Stefan Demmler, Thomas Gottschall, Jens Limpert, Andreas Tünnermann
Proceedings Volume 9344, 93441A (2015) https://doi.org/10.1117/12.2079193
KEYWORDS: Fiber amplifiers, Femtosecond phenomena, Optical amplifiers, Beam splitters, Polarization, Laser systems engineering, Fiber lasers, Ultrafast phenomena, Phase shift keying, Sensors

Proceedings Article | 20 February 2015 Paper
Proceedings Volume 9346, 93460U (2015) https://doi.org/10.1117/12.2078302
KEYWORDS: Crystals, Sapphire, Nonlinear crystals, Laser crystals, Frequency conversion, High power lasers, Harmonic generation, Finite element methods, Atomic force microscopy, Laser systems engineering

Proceedings Article | 7 March 2014 Paper
Steffen Hädrich, Arno Klenke, Armin Hoffmann, Tino Eidam, Thomas Gottschall, Jan Rothhardt, Jens Limpert, Andreas Tünnermann
Proceedings Volume 8961, 89611E (2014) https://doi.org/10.1117/12.2039603
KEYWORDS: Complex systems, Mirrors, Amplifiers, Laser systems engineering, Argon, Ultrafast phenomena, Fiber lasers, Capillaries, Femtosecond phenomena, Modulation

Proceedings Article | 26 February 2013 Paper
Jan Rothhardt, Steffen Hädrich, Stefan Demmler, Manuel Krebs, Jens Limpert, Andreas Tünnermann
Proceedings Volume 8601, 86011D (2013) https://doi.org/10.1117/12.2002425
KEYWORDS: Fiber lasers, Laser systems engineering, Extreme ultraviolet, Laser applications, Optical amplifiers, Mirrors, High harmonic generation, Signal generators, Phase measurement, Laser stabilization

Proceedings Article | 23 February 2012 Paper
Proceedings Volume 8237, 823708 (2012) https://doi.org/10.1117/12.908175
KEYWORDS: Polarization, Optical amplifiers, Amplifiers, Fiber lasers, Femtosecond phenomena, Fiber amplifiers, Laser systems engineering, Ultrafast phenomena, Beam splitters, Reflectivity

Proceedings Article | 16 February 2012 Paper
Steffen Hädrich, Jan Rothhardt, Henning Carstens, Stefan Demmler, Thomas Gottschall, Jens Limpert, Andreas Tünnermann
Proceedings Volume 8237, 82371O (2012) https://doi.org/10.1117/12.907883
KEYWORDS: Complex systems, Noble gases, Mirrors, Fiber lasers, Ultrafast phenomena, High harmonic generation, Pulsed laser operation, Laser systems engineering, Xenon, Fiber amplifiers

Proceedings Article | 15 February 2012 Paper
Proceedings Volume 8240, 82400Z (2012) https://doi.org/10.1117/12.908390
KEYWORDS: Dispersion, Optical fibers, Mirrors, Phase measurement, Physics, Phase shift keying, Modulation, Solids, Oscillators, Spatial light modulators

Proceedings Article | 11 February 2011 Paper
Proceedings Volume 7914, 79140S (2011) https://doi.org/10.1117/12.874872
KEYWORDS: Harmonic generation, Fiber amplifiers, Second-harmonic generation, Crystals, Infrared radiation, Pulsed laser operation, Femtosecond phenomena, Picosecond phenomena, Amplifiers, Nonlinear crystals

Proceedings Article | 17 February 2010 Paper
Proceedings Volume 7580, 75800V (2010) https://doi.org/10.1117/12.841555
KEYWORDS: Mirrors, Xenon, Numerical simulations, Ultrafast phenomena, Fiber lasers, Laser systems engineering, Complex systems, Fiber amplifiers, Dispersion, Noble gases

Proceedings Article | 17 February 2010 Paper
J. Rothhardt, S. Hädrich, T. Gotschall, J. Limpert, A. Tünnermann, M. Rothhardt, M. Becker, S. Brückner, H. Bartelt
Proceedings Volume 7580, 75801B (2010) https://doi.org/10.1117/12.841611
KEYWORDS: Fiber Bragg gratings, Picosecond phenomena, Reflectivity, Pulse shaping, Fiber optics, Pulsed laser operation, Fiber lasers, Polarization, Crystals, Step index fibers

Proceedings Article | 19 February 2009 Paper
Proceedings Volume 7195, 719514 (2009) https://doi.org/10.1117/12.811903
KEYWORDS: Laser systems engineering, Fiber amplifiers, Femtosecond phenomena, Oscillators, Optical amplifiers, Dielectrics, Medium wave, Ultrafast phenomena, Solid state lasers, Laser applications

Proceedings Article | 19 February 2009 Paper
Proceedings Volume 7195, 719513 (2009) https://doi.org/10.1117/12.808761
KEYWORDS: Optical amplifiers, Fiber amplifiers, Mirrors, Oscillators, Crystals, Pulsed laser operation, Ultrafast phenomena, Beam splitters, Optical testing, Quality measurement

Proceedings Article | 5 March 2008 Paper
Proceedings Volume 6871, 687102 (2008) https://doi.org/10.1117/12.763516
KEYWORDS: Femtosecond phenomena, Pulsed laser operation, Q switched lasers, Laser crystals, Crystals, Semiconductor lasers, Q switches, Q switching, Ultrafast phenomena, Absorption

Proceedings Article | 25 February 2008 Paper
Proceedings Volume 6873, 68731L (2008) https://doi.org/10.1117/12.768520
KEYWORDS: Fiber amplifiers, Optical amplifiers, Solitons, Oscillators, Photonic crystal fibers, Nonlinear crystals, Diffraction gratings, Crystals, Silica, Phase modulation

Proceedings Article | 22 February 2007 Paper
Proceedings Volume 6453, 64530M (2007) https://doi.org/10.1117/12.717535
KEYWORDS: Fiber amplifiers, Fiber lasers, Crystals, Ultrafast phenomena, Photonic crystal fibers, Optical amplifiers, Solitons, Oscillators, Bragg cells, Photonic crystals

Proceedings Article | 23 February 2006 Paper
Proceedings Volume 6102, 610210 (2006) https://doi.org/10.1117/12.646300
KEYWORDS: Dispersion, Mirrors, Fiber lasers, Complex systems, Laser systems engineering, Photonic crystal fibers, Fiber amplifiers, Medium wave, Scanning probe microscopy, Laser damage threshold

Showing 5 of 27 publications
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