Results 91 to 100 of about 655,925 (317)

The Use of Spatially Multi-Component Plasma Structures and Combined Energy Deposition for High-Speed Flow Control: A Selective Review

Energies
This review examines studies aimed at the organization of energy (non-mechanical) control of high-speed flow/flight using spatially multi-component plasma structures and combined energy deposition.
Olga A. Azarova, Oleg V. Kravchenko
doaj   +1 more source

Ion acceleration in underdense plasmas by ultra-short laser pulses

New Journal of Physics, 2014
We report on the ion acceleration mechanisms that occur during the interaction of an intense and ultrashort laser pulse ( $I\lambda^{2}>10^{18} \text{W}\,\text{cm}^{-2}\,\mu \text{m}^{2}$ ) with an underdense helium plasma produced from an ionized gas ...
A Lifschitz, F Sylla, S Kahaly, A Flacco, M Veltcheva, G Sanchez-Arriaga, E Lefebvre, V Malka   +7 more
doaj   +1 more source

Observation of enhanced absorption of laser radiation by nano structured targets in PIC simulations

, 2017
It is well known that Brunel's vacuum heating mechanism is operative for laser energy absorption when the target plasma density rises sharply. For non-relativistic laser intensities and planar targets it is also necessary that the laser should strike the
Das, Amita, Shukla, Chandrasekhar
core   +1 more source

Non Thermal‐Driven Photocatalytic Ammonia Decomposition at Near‐Room Temperature on a Plasmonic Nanocone Array

Advanced Functional Materials, EarlyView.
Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui, S. M. Hossein Hejazi, Jan Navrátil, Hana Kmentová, Petr Bábor, Olivier Henrotte, Luca Mascaretti, Matteo Bisetto, Stephen K. Sanders, Andrea Schirato, Michal Otyepka, Piotr Błoński, Tiziano Montini, Radek Zboril, Paolo Fornasiero, Alessandro Alabastri, Alberto Naldoni, Stepan Kment   +17 more
wiley   +1 more source

Surface waves and electron acceleration from high-power, kilojoule-class laser interactions with underdense plasma

New Journal of Physics, 2013
Experiments were performed on the Omega EP laser facility to study laser pulse propagation, channeling phenomena and electron acceleration from high-intensity, high-power laser interactions with underdense plasma.
L Willingale, A G R Thomas, P M Nilson, H Chen, J Cobble, R S Craxton, A Maksimchuk, P A Norreys, T C Sangster, R H H Scott, C Stoeckl, C Zulick, K Krushelnick   +12 more
doaj   +1 more source

Experimental observation of backscattered light based on different coherence between incident laser beams

High Power Laser Science and Engineering, 2013
Recent experimental results on NIF revealed a much higher stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS) backscatter than expected; one possible reason was due to the coherence between incident laser beams.
Xiangfu Meng, Chen Wang, Honghai An, Guo Jia, Huazhen Zhou, Sizu Fu   +5 more
doaj   +1 more source

Nonintegrable Interaction of Ion-Acoustic and Electromagnetic Waves in a Plasma

, 1996
In this paper we re-examine the one-dimensional interaction of electromagnetic and ion acoustic waves in a plasma. Our model is similar to one solved by Rao et al. (Phys. Fluids, vol. 26, 2488 (1983)) under a number of analytical approximations.
A. C.-L. Chian, A.C.-L. Chian, A.C.-L. Chian, A.J. Lichtenberg, E. Infeld, F. B. Rizzato, G. Corso, G. Corso, G.I. de Oliveira, G.I. de Oliveira, G.I. de Oliveira, H.T. Moon, J. Guckenheimer, J. Weiland, J.M. Wersinger, N.N. Rao, P.K. Kaw, R.J. Noble, S. R. Lopes, S.R. Lopes, W.L. Kruer, X.T. He   +21 more
core   +3 more sources

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

Advanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt, Jens Timmer, Elisabetta Ada Cavalcanti‐Adam   +2 more
wiley   +1 more source

Tailoring laser-generated plasmas for efficient nuclear excitation by electron capture

, 2018
The optimal parameters for nuclear excitation by electron capture in plasma environments generated by the interaction of ultra-strong optical lasers with solid matter are investigated theoretically.
Gunst, Jonas, Keitel, Christoph H., Pálffy, Adriana, Wu, Yuanbin   +3 more
core   +1 more source