Surface plasmon assisted magnetic anomalies on room temperature gold films in high-intensity laser fields

Supplementing our STM and electron emission studies investigations, concluding in electron pairing in strong laser fields [1], further time-of-flight electron emission studies were carried out, changing the angle of polarization of the incident light, exciting surface plasmon oscillations. It has been found, that those parts of the electron spectrum which have been attributed to electron pairing have a significantly different angular dependence around 80 GW/cm2 where the pairing effect has been found than outside this region (e.g. 120 GW/cm2). These results have been interpreted as the appearance of ideal or partly ideal diamagnetism on the one hand and as anomaly in the magneto-optical effect (rotation) on the other, in the same laser intensity region where the pairing effect has been found

New method to detect size, timespan and flow in nanoplasmonic fusion

The differential Hanbury-Brown and Twiss analysis is widely used in astrophysics and in relativistic heavy ion physics to determine the size and timespan of emitted particles. Here we propose to adopt theis method for laser induced nanoplasmonic inertial confinement fusion. The aim is to determine the parameters of emitted Deuterium and Helium$^4$ nuclei at the ignition of the fusion target. In addition of spatial volume and timespan the method is able to detect specific space-time correlation patterns, which are connected to collective flow at ignition

Laser induced proton acceleration by resonant nano-rod antenna for fusion

Recently laser induced fusion with simultaneous volume ignition, a spin-off from relativistic heavy ion collisions, was proposed, where implanted nano antennas regulated and amplified the light absorption in the fusion target. Studies of resilience of the nano antennas were published recently in vacuum and in UDMA-TEGDMA medium. These studies concluded that the lifetime of the plasmonic effect is longer in medium, however, less energy was observed in the UDMA-TEGDMA copolymer, due to the smaller resonant size of gold nanoantenna than in case of Vacuum. Here we show how the plasmonic effect behaves in an environment fully capable of ionization, surrounded by Hydrogen atoms close to liquid densities. We performed numerical simulations treating the electrons of gold in the conduction band as strongly coupled plasma. The results show that the protons close to the nanorod's surface follow the collectively moving electrons rather than the incoming electric field of the light. The results also show that the plasmonic accelerating effect is also dependent on the laser intensity.Comment: arXiv admin note: text overlap with arXiv:2212.0363

Neutron cross-sections for advanced nuclear systems : The n-TOF project at CERN

© Owned by the authors, published by EDP Sciences, 2014 This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly citedThe study of neutron-induced reactions is of high relevance in a wide variety of fields, ranging from stellar nucleosynthesis and fundamental nuclear physics to applications of nuclear technology. In nuclear energy, high accuracy neutron data are needed for the development of Generation IV fast reactors and accelerator driven systems, these last aimed specifically at nuclear waste incineration, as well as for research on innovative fuel cycles. In this context, a high luminosity Neutron Time Of Flight facility, n-TOF, is operating at CERN since more than a decade, with the aim of providing new, high accuracy and high resolution neutron cross-sections. Thanks to the features of the neutron beam, a rich experimental program relevant to nuclear technology has been carried out so far. The program will be further expanded in the near future, thanks in particular to a new high-flux experimental area, now under construction.Peer reviewedFinal Published versio