Zobrazeno 1 - 10
of 883
pro vyhledávání: '"Stefan, Nolte"'
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 520-528 (2024)
The morphology of primarily crystallizing Si in hypereutectic Al-(20, 40, 55) wt%Si alloys during conventional casting (nucleation undercooling ΔT
Externí odkaz:
https://doaj.org/article/360f3b0789c94f9c823ecc1a84715166
Autor:
Saher Junaid, Johannes Hofmann, Mario Chemnitz, Markus Blothe, Frank Setzpfandt, Stefan Nolte, Markus A. Schmidt
Publikováno v:
APL Photonics, Vol 9, Iss 1, Pp 016114-016114-8 (2024)
Ultrafast nonlinear interactions in optical fibers are commonly employed for generating light with tailored properties, with four-wave mixing (FWM) being a widely used mechanism. Existing systems mainly rely on fibers with solid glass cores, facing l
Externí odkaz:
https://doaj.org/article/b203d926a84749fdaf6601b558701307
Autor:
Vikas Remesh, Ria G. Krämer, René Schwarz, Florian Kappe, Yusuf Karli, Malte Per Siems, Thomas K. Bracht, Saimon Filipe Covre da Silva, Armando Rastelli, Doris E. Reiter, Daniel Richter, Stefan Nolte, Gregor Weihs
Publikováno v:
APL Photonics, Vol 8, Iss 10, Pp 101301-101301-11 (2023)
A scalable source of single photons is a key constituent of an efficient quantum photonic architecture. To realize this, it is beneficial to have an ensemble of quantum emitters that can be collectively excited with high efficiency. Semiconductor qua
Externí odkaz:
https://doaj.org/article/4a076e2609844b929b3b0f84e8f73d2a
Publikováno v:
Advanced Photonics Research, Vol 4, Iss 5, Pp n/a-n/a (2023)
While ultrafast laser welding is an appealing technique for bonding transparent workpieces, it is not applicable for joining silicon samples due to nonlinear propagation effects which dramatically diminish the possible energy deposition at the interf
Externí odkaz:
https://doaj.org/article/31c6be2e5cba4947ae31b3f06857663f
Autor:
Caterina Gaudiuso, Pavel N. Terekhin, Annalisa Volpe, Stefan Nolte, Bärbel Rethfeld, Antonio Ancona
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Abstract In this work, we performed an experimental investigation supported by a theoretical analysis, to improve knowledge on the laser ablation of silicon with THz bursts of femtosecond laser pulses. Laser ablated craters have been created using 20
Externí odkaz:
https://doaj.org/article/36584e59f43648beb64ac84bdd124185
Autor:
Alexander Reim, Roland Ackermann, Jofre Font-Mateu, Robert Kammel, Miguel Beato, Stefan Nolte, Matthias Mann, Christoph Russmann, Michael Wierer
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-14 (2020)
Cross-linking mass spectrometry (MS) is an important tool in structural biology, but its application to protein-DNA complexes has been hampered by low cross-linking efficiency. Here, the authors develop a femtosecond UV-laser induced cross-linking MS
Externí odkaz:
https://doaj.org/article/92fea555226e4693b60d8da44e4a57ca
Autor:
Tobias Ullsperger, Yannick L. Wencke, Burak Yürekli, Gabor Matthäus, Markus Rettenmayr, Gerrit A. Luinstra, Stefan Nolte
Publikováno v:
Materials & Design, Vol 210, Iss , Pp 110048- (2021)
Laser based additive manufacturing of UHMWPE offers new opportunities for realizing complex components for medical implants. Conventionally, laser powder bed fusion of UHMWPE is achieved by CO2 lasers but up to now the mechanical properties of the pr
Externí odkaz:
https://doaj.org/article/443b839310594d5087a55d72f8b66c09
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043162 (2022)
We discuss the semiclassical transverse trapping of waves by means of an inhomogeneous gauge field. In the proposed scheme a temporally periodic perturbation is shifted in time, the imparted delay being dependent on the transverse direction. We show
Externí odkaz:
https://doaj.org/article/d8b7f4b0423b4159b3ba86104db4ec3a
Autor:
Dongmei Liu, Burak Yürekli, Tobias Ullsperger, Gabor Matthäus, Lisa Schade, Stefan Nolte, Markus Rettenmayr
Publikováno v:
Materials & Design, Vol 198, Iss , Pp 109323- (2021)
Laser assisted powder bed fusion using a binary AlLi alloy with high Li content (Al–14 at.%Li) has been performed for the first time. The aim was to generate microstructures with extended concentration range of AlLi alloys in which the format
Externí odkaz:
https://doaj.org/article/f2b26da6ad3949ec962f89f85693a8bb
Autor:
Gia Quyet Ngo, Emad Najafidehaghani, Ziyang Gan, Sara Khazaee, Malte Per Siems, Antony George, Erik P. Schartner, Stefan Nolte, Heike Ebendorff-Heidepriem, Thomas Pertsch, Alessandro Tuniz, Markus A. Schmidt, Ulf Peschel, Andrey Turchanin, Falk Eilenberger
Publikováno v:
Nature Photonics. 16:769-776
Silica-based optical fibres are a workhorse of nonlinear optics, providing ready access to a range of nonlinear phenomena including solitons and self-phase modulation. However, they have one fundamental limitation: due to the amorphous nature of sili