Results 31 to 40 of about 99,732 (295)

Molecular polarizability anisotropy of liquid water revealed by terahertz-induced transient orientation

Nature Communications, 2018
The intermolecular dynamics of liquid water impact most biological processes. Here, the authors use intense terahertz electromagnetic pulses to generate a transient, out-of-equilibrium state of the water network to show that the molecules become oriented
Peter Zalden, Liwei Song, Xiaojun Wu, Haoyu Huang, Frederike Ahr, Oliver D. Mücke, Joscha Reichert, Michael Thorwart, Pankaj Kr. Mishra, Ralph Welsch, Robin Santra, Franz X. Kärtner, Christian Bressler   +12 more
doaj   +1 more source

High-power sub-picosecond filamentation at 1.03 µm with high repetition rates between 10 and 100 kHz

APL Photonics, 2023
Filamentation has extensively been explored and is well understood at repetition rates
Robin Löscher, Victor Moreno, Dionysis Adamou, Denizhan K. Kesim, Malte C. Schroeder, Matteo Clerici, Jean-Pierre Wolf, Clara J. Saraceno   +7 more
doaj   +1 more source

New phenomena in interaction of intense ultrashort light pulses with transparent materials: from 3D self-assembled nanostructures to quill writing and nonreciprocal photosensitivity

, 2010
Interaction of intense ulrashort light pulses with transparent materials reveal new ultrafast phenomena. Recent demonstrations of 3D nanoripple formation, ultrafast laser calligraphy and nonreciprocal photosensitivity are ...
Beresna, M., Hirao, K, Kazansky, P.G., Shimotsuma, Y., Svirko, Y.P.   +4 more
core   +1 more source

Ultrafast Laser Welding of Silicon

Advanced Photonics Research, 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 interface.
Maxime Chambonneau, Qingfeng Li, Markus Blothe, Stree Vithya Arumugam, Stefan Nolte   +4 more
openaire   +3 more sources

Large energy soliton erbium-doped fiber laser with a graphene-polymer composite mode locker

, 2009
Due to its unique electronic property and the Pauli Blocking Principle, atomic layer graphene possesses wavelength-independent ultrafast saturable absorption, which can be exploited for the ultrafast photonics application.
Bao, Qiaoliang, Loh, Kianping, Tang, Dingyuan, Zhang, Han, Zhao, Luming   +4 more
core   +1 more source

Generation of 12 nJ Pulse Energy by a Thulium-doped Fiber Mamyshev Oscillator [PDF]

EPJ Web of Conferences, 2022
Schuhbauer B., Adolfs V., Haxsen F., Wienke A., Morgner U., Neumann J., Kracht D.   +6 more
doaj   +1 more source

Laser pressure welding of Al-Li alloy 2198: effect of welding parameters on fusion zone characteristics associated with mechanical properties

High Temperature Materials and Processes, 2020
Al-Li alloy 2198 exhibits good combination of toughness and strength but its application is strongly limited by the poor weldability due to the formation of porosities during fusion-welding.
Zhao Tianbo, Sato Yutaka S., Xiao Rongshi, Huang Ting, Zhang Jingquan   +4 more
doaj   +1 more source

Time-dependent energy absorption changes during ultrafast lattice deformation

, 2001
The ultrafast time-dependence of the energy absorption of covalent solids upon excitation with femtosecond laser pulses is theoretically analyzed.
Callan, Glosli, Harald O. Jeschke, Jeschke, Jeschke, K. H. Bennemann, Knox, Lenzner, Martı́n E. Garcia, Morris, Musella, Parrinello, Reitze, Rose-Petruck, Rousse, Sokolowski-Tinten, Sokolowski-Tinten, Sokolowski-Tinten, Verlet   +18 more
core   +1 more source

Avant-Garde Ultrafast Laser Writing [PDF]

MATEC Web of Conferences, 2013
Ultrafast laser processing of transparent materials reveals new phenomena. Reviewed, are recent demonstrations of 5D optical memory, vortex polarization and Airy beam converters employing self-assembled nanostructuring, ultrafast laser calligraphy and polarization writing control using pulses with tilted front.
Kazansky, P.G., Beresna, M., Gecevičius, M.   +2 more
openaire   +3 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source