Results 31 to 40 of about 99,111 (295)
Controlling ultrafast currents by the non-linear photogalvanic effect
, 2015 We theoretically investigate the effect of broken inversion symmetry on the generation and control of ultrafast currents in a transparent dielectric (SiO2) by strong femto-second optical laser pulses. Ab-initio simulations based on time-dependent density
Christoph Lemell +6 more
core +2 more sources
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 +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 +7 more
doaj +1 more source
, 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. +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 +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 +4 more
core +1 more source
Scanning ultrafast electron microscopy [PDF]
, 2010 Progress has been made in the development of four-dimensional ultrafast electron microscopy, which enables space-time imaging of structural dynamics in the condensed phase. In ultrafast electron microscopy, the electrons are accelerated, typically to 200
Mohammed, Omar F. +2 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. +6 more
doaj +1 more source
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 +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 +18 more
core +1 more source