Numerical plasma physics for the beauty of complexity and for novel applications

数值等离子体物理的复杂性和新颖的应用

基本信息

批准号：
RGPIN-2016-05513
负责人：
Vidal, François
金额：
$ 1.97万
依托单位：
Institut national de la recherche scientifique
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2016
资助国家：
加拿大
起止时间：
2016-01-01 至 2017-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=615741
关键词：
Numerical plasma physics beauty complexity

项目摘要

Plasmas have an incredibly wide range of scientific and practical applications in our modern societies, ranging from astrophysics to nanofabrication, and from nuclear fusion to sterilization of medical instruments, surface functionalization and home lighting. Plasmas are known to be very complex due to the interaction between several particle species, including positively and negatively charged ions, atoms, molecules, radicals, electrons, photons, and eventually nanoparticles, and to its high responsivity to self-induced and external electromagnetic fields, including laser fields. In particular, electrons, due to their small mass, generally have a complicated energy distribution but knowing it is essential to quantify most critical processes taking place in plasmas. For this reason, numerical modeling has always been an intrinsic and essential component of plasma physics. This research program aims at developing further several aspects of numerical plasma physics, some of which are already ongoing and done in collaboration with experimentalists. The planned research relates particularly to time-dependent discharge plasmas and to laser-plasma interaction, at both high and low intensity. The benefits of this research will include for instance the understanding (i) of pulsed plasma discharges, which show different properties with respect to stationary plasmas, (ii) of the growth and transport processes of nanoparticles in magnetized plasmas for applications to surface functionalization, astrophysics and space science, (iii) of ultrashort laser pulse amplification for accessing new ultra-high intensity regimes, and (iv) of laser-induced plasma spectroscopy for mining exploration.

等离子体在现代社会中具有极其广泛的科学和实际应用，从天体物理学到纳米制造，从核聚变到医疗器械灭菌、表面功能化和家庭照明。已知等离子体非常复杂，因为多种粒子种类之间的相互作用，包括带正电和带负电的离子、原子、分子、自由基、电子、光子和最终的纳米颗粒，以及它对自感应场和外部电磁场的高响应性，包括激光场。特别是，电子由于质量小，通常具有复杂的能量分布，但了解量化等离子体中发生的最关键过程至关重要。因此，数值模拟一直是等离子体物理学的内在和重要组成部分。该研究计划旨在进一步发展数值等离子体物理学的几个方面，其中一些已经在与实验学家合作进行中并完成。计划中的研究特别涉及高强度和低强度的时间依赖性放电等离子体以及激光与等离子体的相互作用。这项研究的好处将包括例如了解（i）脉冲等离子体放电，它表现出与静止等离子体不同的特性，（ii）磁化等离子体中纳米颗粒的生长和传输过程，用于表面功能化、天体物理学和空间科学，（iii）用于获得新的超高强度状态的超短激光脉冲放大，以及（iv）用于采矿勘探的激光诱导等离子体光谱。