Enhanced plasma ion heating by lasers in inhomogeneous external magnetic field

被引：0
|
作者：
Juneja, Rohit [1 ]
Dhalia, Trishul [1 ]
Das, Amita [1 ]
机构：
[1] Indian Inst Technol Delhi, Dept Phys, New Delhi 110016, India
来源：
PHYSICS LETTERS A | 2024年 / 519卷
关键词：
Laser-plasma interaction; Ion heating; Lower hybrid resonance; Wave breaking; Localized absorption; FAST IGNITION; ABSORPTION; ACCELERATION; RADIOGRAPHY; DRIVEN;
D O I：
10.1016/j.physleta.2024.129696
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Particle-In-Cell simulations have been carried out to study the propagation of a laser pulse inside a plasma medium threaded with an external magnetic field. The external magnetic field is chosen to have space variations, which ensure that the laser pulse penetrates inside the plasma slab following the pass band dispersion relation of the X-mode. The spatial variation of the magnetic field is chosen such that the LH resonance is encountered within the bulk plasma medium. Enhanced deposition of laser energy to ions at the resonance layer has been demonstrated. This scheme would thus be useful to heat ions at any desired bulk region of the plasma.
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