Electronic dynamics and frequency-dependent effects in circularly polarized strong-field physics [PDF]
, 2014 We analyze, quantum mechanically, the dynamics of ionization with a strong, circularly polarized, laser field. We show that the main source for non-adiabatic effects is connected to an effective barrier lowering due to the laser frequency.
Bandrauk, A. D., Mauger, Francois
core +4 more sources
In-situ full-field mapping of melt flow dynamics in laser metal additive manufacturing
, 2020 Melt flow plays a critical role in laser metal additive manufacturing, yet the melt flow behavior within the melt pool has never been explicitly presented.
Qilin Guo +9 more
semanticscholar +1 more source
Normalized boundary value problems in the model of optoelectronic oscillator delayed [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамика, 2020 Purpose of this work is reduction of differential-difference-model of optic-electronic oscillator to more simple normalized boundary value problems. We study the dynamics of an optoelectronic oscillator with delayed feedback in the vicinity of the zero ...
Grigoreva, Elena Viktorovna +1 more
doaj +1 more source
Dynamics of pore formation during laser powder bed fusion additive manufacturing
Nature Communications, 2019 Laser powder bed fusion additive manufacturing is an emerging 3D printing technique for the fabrication of advanced metal components. Widespread adoption of it and similar additive technologies is hampered by poor understanding of laser-metal ...
Aiden A. Martin +14 more
semanticscholar +1 more source
Outcoupling from a Bose-Einstein condensate with squeezed light to produce entangled atom laser beams [PDF]
, 2005 We examine the properties of an atom laser produced by outcoupling from a Bose-Einstein condensate with squeezed light. We model the multimode dynamics of the output field and show that a significant amount of squeezing can be transfered from an optical ...
B. P. Anderson +5 more
core +2 more sources
Unveiling multi-scale laser dynamics through time-stretch and time-lens spectroscopies
, 2017 Spectro-temporal studies on the nonlinear physics of complex laser dynamics are essential in approaching its ultimate performance as well as understanding interdisciplinary problems.
Xiaoming Wei +5 more
semanticscholar +1 more source
All-optical nonequilibrium pathway to stabilising magnetic Weyl semimetals in pyrochlore iridates
Nature Communications, 2018 Topological states may emerge in nonequilibrium but the mechanisms are much less understood. Here Topp et al. propose a nonequilibrium route to obtain the magnetic Weyl semimetallic phase in pyrochlore iridates by ultrafast modification of the effective ...
Gabriel E. Topp +4 more
doaj +1 more source
Metals, 2020 Welding by laser beam is a method for creating deep and narrow welds with low influence on the surrounding material. Nevertheless, the microstructure and mechanical properties change, and highly alloyed materials are prone to segregation. A new promising
Jan Grajczak +6 more
doaj +1 more source
Ultra-strong spin–orbit coupling and topological moiré engineering in twisted ZrS2 bilayers
Nature Communications, 2022 Studies of twisted bilayer transition metal dichalcogenides have so far focused only on those containing group-VI metals. Here, the authors predict that twisted bilayers of ZrS2, with the group-IV metal Zr, form an emergent moiré Kagome lattice with a ...
Martin Claassen +3 more
doaj +1 more source
In situ X-ray imaging of defect and molten pool dynamics in laser additive manufacturing
Nature Communications, 2018 The laser–matter interaction and solidification phenomena associated with laser additive manufacturing (LAM) remain unclear, slowing its process development and optimisation.
C. L. Leung +5 more
semanticscholar +1 more source