Magnetically Assisted Fast Ignition

Abstract

Fast ignition (FI) is investigated via integrated particle-in-cell simulation including both generation and transport of fast electrons, where petawatt ignition lasers of 2 ps and compressed targets of a peak density of 300 g cm −3 and areal density of 0.49 g cm −2 at the core are taken. When a 20 MG static magnetic field is imposed across a conventional cone-free target, the energy coupling from the laser to the core is enhanced by sevenfold and reaches 14%. This value even exceeds that obtained using a cone-inserted target, suggesting that the magnetically assisted scheme may be a viable alternative for FI. With this scheme, it is demonstrated that two counterpropagating, 6 ps, 6 kJ lasers along the magnetic field transfer 12% of their energy to the core, which is then heated to 3 keV.

Axion-Plasmon Polaritons in Strongly Magnetized Plasmas

“…This assures the access to the crossing point with simple experimental techniques, such as Langmuir probes [34,35]. The situation may be slightly different for Tokamak (n 0 ∼ 10 14 cm −3 ) and solid-state (n 0 ∼ 10 18 cm −3 ) plasmas, for which we respectively estimate λ Ã ∼ 0.1 mm and λ Ã ∼ 1 μm, implying the use of more sophisticated spectroscopic techniques [36][37][38]. The features of the axion-polariton modes (9) are summarized in Fig.…”

Laser-driven platform for generation and characterization of strong quasi-static magnetic fields

“…The possibility of imposing a strong, laser-driven B-field to a variety of samples opens interesting perspectives for laboratory studies of magnetized plasma- [2], atomic- [3] and nuclear-physics [4]. We foresee great progress on the understanding of systems of astrophysical scale [5][6][7][8][9][10], on the improvement of inertial fusion energy schemes [11][12][13][14] and for various applications of magneticallyguided particle beams [15,16], among many other applications.…”

Spin-Split Band Hybridization in Graphene Proximitized with α-RuCl3 Nanosheets

“…[8][9][10][11][12][13][14][15][16] As another relevant proximity effect local spin generation and spin manipulation in graphene is achievable through an adjacent magnetic insulator via the magnetic exchange field. 17,18 Experimental and theoretical studies on graphene in proximity with magnetic insulators like EuO, EuS, or yttrium iron garnet (YIG) [19][20][21][22] have revealed novel correlated phenomena, such as the observation of a large magnetic exchange field and quantum anomalous Hall gaps.…”