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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.

Papers
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Journal ArticleDOI

Angular surface solitons in sectorial hexagonal arrays

Alexander Szameit, +9 more
- 29 May 2008 - 
TL;DR: The experimental observation of corner surface solitons localized at the edges joining planar interfaces of hexagonal waveguide array with uniform nonlinear medium shows the face angle has a strong impact on the threshold of soliton excitation as well as on the light energy drift and diffraction spreading.
Journal ArticleDOI

187 W, 3.7 mJ from spectrally combined pulsed 2 ns fiber amplifiers

Oliver Schmidt, +3 more
- 01 Feb 2009 - 
TL;DR: A spectral combination of four 2 ns pulsed fiber amplifier systems to a total output power of 187 W at a 50 kHz repetition rate resulting in >3.7 mJ of pulse energy and 1.7 MW of pulse peak power.
Proceedings ArticleDOI

InN as THz emitter excited at 1060 nm and 800 nm

B. Pradarutti, +9 more
TL;DR: In this article, a novel semiconductor material, called InN, was used as THz surface emitter and the material was irradiated with fs-laser pulses at 1060 nm and 800 nm and the emitted ultrashort THz pulses were measured by phase sensitive detection.
Journal ArticleDOI

Structural, optical, and mechanical properties of TiO2 nanolaminates.

Lilit Ghazaryan, +9 more
- 26 Feb 2021 - 
TL;DR: By using TiO2/Al2O3 nanolaminates with reduced mechanical stress, a narrow bandpass filter was realized on various substrates, including half-ball and aspherical lenses.
Journal ArticleDOI

Highly efficient THz emission from differently grown InN at 800 nm and 1060 nm excitation

Gabor Matthäus, +9 more
- 15 Jul 2008 - 
TL;DR: In this article, a detailed study on differently molecular-beam epitaxy (MBE) grown InN wavers as THz surface emitters is reported, which is caused by the absence of any intervalley scattering, which increases the effective mass of the photogenerated electrons and, thus, reduces the photo-Dember effect.