Dr. Matthias Baudisch Profile

Dr. Matthias Baudisch

at APE GmbH

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Publications (4)

Proceedings Article | 1 April 2022 Presentation

High-dynamic range pulse-contrast measurements for wide use in scientific applications and laser development

Matthias Baudisch, Mateusz Ibek, Edlef Büttner, Peter Staudt

Proceedings Volume PC11991, PC119910S (2022) https://doi.org/10.1117/12.2607732

KEYWORDS: High dynamic range imaging, Laser development, Femtosecond phenomena, Materials processing, Picosecond phenomena, Temporal resolution, Pulsed laser operation, Laser processing, Laser applications, Interferometry

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Proceedings Article | 9 March 2020 Presentation

2.4-18 µm tunable, picosecond parametric source for the generation of narrowband, μJ-level pulses with sub-8 cm-1 spectral bandwidth and 20 kHz repetition rate (Conference Presentation)

Matthias Baudisch, Moritz Hinkelmann, Dieter Wandt, Jörg Neumann, Ingo Rimke

Proceedings Volume 11264, 112640I (2020) https://doi.org/10.1117/12.2546338

KEYWORDS: Picosecond phenomena, Optical amplifiers, Optical parametric oscillators, Optical design

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Proceedings Article | 22 April 2016 Paper

Broadband 7 microns OPCPA pumped by a 2 microns picosecond Ho:YLF CPA system

Daniel Sanchez, Michael Hemmer, Matthias Baudisch, Jens Biegert, Olivier Chalus, Christophe Simon-Boisson, Kevin Zawilski, Peter Schunemann, Vadim Smirnov, Heinar Hoogland

Proceedings Volume 9730, 97300X (2016) https://doi.org/10.1117/12.2213136

KEYWORDS: Mid-IR, Optical amplifiers, Picosecond phenomena, Fiber amplifiers, Physics, Nonlinear crystals, Crystals, Spectroscopy, Pulsed laser operation, Frequency combs

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The development of coherent light sources with emission in the mid-IR is currently undergoing a remarkable revolution. The mid-IR spectral range has always been of tremendous interest, mainly to spectroscopists, due to the ability of mid-IR light to access rotational and vibrational resonances of molecules which give rise to superb sensitivity upon optical probing [1-3]. Previously, high energy resolution was achieved with narrowband lasers or parametric sources, but the advent of frequency comb sources has revolutionized spectroscopy by providing high energy resolution within the frequency comb structure of the spectrum and at the same time broadband coverage and short pulse duration [4-6]. Such carrier to envelope phase (CEP) controlled light waveforms, when achieved at ultrahigh intensity, give rise to extreme effects such as the generation of isolated attosecond pulses in the vacuum to extreme ultraviolet range (XUV) [7]. Motivated largely by the vast potential of attosecond science, the development of ultraintense few-cycle and CEP stable sources has intensified [8], and it was recognized that coherent soft X-ray radiation could be generated when driving high harmonic generation (HHG) with long wavelength sources [9-11]. Recently, based on this concept, the highest waveform controlled soft X-ray flux [12] and isolated attosecond pulse emission at 300 eV [13] was demonstrated via HHG from a 1850 nm, sub-2-cycle source [14]. Within strong field physics, long wavelength scaling may lead to further interesting physics such as the direct reshaping of the carrier field [15], scaling of quantum path dynamics [16], the breakdown of the dipole approximation [17] or direct laser acceleration [18]. The experimental development of long wavelength light sources therefore holds great promise in many fields of science and will lead to numerous applications beyond strong field physics and attosecond science. In this paper, we present the first mid-IR optical parametric chirped pulse amplifier (OPCPA) operating at a center wavelength of 7 μm with output parameters suitable already for strong-field experiments. It is also the first demonstration of an Optical Parametric Chirped Pulse Amplifier (OPCPA) using a 2 μm laser pump source which enables the use of non-oxide nonlinear crystals with typically limited transparency at 1 mm wavelength. This new OPCPA system is all-optically synchronized and generates 0.55 mJ energy, CEP stable optical pulses. The pulses are currently compressed to sub-8 optical cycles but support a sub-4 cycle pulse duration. The discrepancy in compression is due to uncompensated higher order phase from the grating compressor which will be addressed in the future.

Proceedings Article | 11 May 2012 Paper

High-energy, tunable, mid-infrared, picosecond optical parametric generation in CdSiP2

S. Chaitanya Kumar, M. Jelínek, M. Baudisch, K. Zawilski, P. Schunemann, V. Kubecek, J. Biegert, M. Ebrahim-Zadeh

Proceedings Volume 8434, 84340F (2012) https://doi.org/10.1117/12.922009

KEYWORDS: Mid-IR, Picosecond phenomena, Nd:YAG lasers, Nonlinear crystals, Signal generators, Crystals, Optical parametric oscillators, Nonlinear optics, Cadmium, Silicon

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