Dust-Plasma Interactions

尘埃-等离子体相互作用

• 批准号: 1201978
• 负责人: Marlene Rosenberg
• 金额: $ 45万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2016-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1201978&HistoricalAwards=false
• 关键词: Dust; Plasma; Interactions

Dusty plasmas are ionized gases containing small charged dust particles that occur in a wide variety of cosmic and terrestrial environments. This theoretical research seeks the advancement of the basic knowledge of the collective behavior of dusty plasmas, with applications to the laboratory and space. The focus is on dusty plasmas in magnetic fields. This is a newer direction in dusty plasma research with added impetus from ongoing and upcoming experiments with larger magnetic fields. Areas of study include: (1) waves and instabilities in weakly coupled dusty plasmas in magnetic fields, where some or all of the charged particles are magnetized;(2) waves and instabilities in strongly coupled dusty plasmas, including those containing superparamagnetic dust;(3) innovative applications involving interaction with electromagnetic waves. The research covers a broad range in that it investigates the basic physics of dusty plasmas in magnetic fields, strongly coupled dusty plasmas, and potential photonics applications of dusty plasmas. The broader impacts of the research include training of students and wide dissemination of results through publications and talks. In addition, there are possible impacts on technological plasma areas (e.g., plasma processing and fusion).

尘埃等离子体是一种电离气体，含有微小的带电尘埃粒子，存在于各种宇宙和陆地环境中。这项理论研究寻求发展尘埃等离子体集体行为的基本知识，并将其应用于实验室和太空。重点放在磁场中的尘埃等离子体上。这是尘埃等离子体研究的一个新方向，来自正在进行和即将进行的更大磁场实验的额外推动力。研究领域包括：(1)磁场中弱耦合尘埃等离子体中的波和不稳定性，其中部分或全部带电粒子被磁化；(2)强耦合尘埃等离子体中的波和不稳定性，包括那些含有超顺磁性尘埃的等离子体；(3)涉及与电磁波相互作用的创新应用。这项研究的范围很广，因为它研究了磁场中尘埃等离子体的基本物理，强耦合尘埃等离子体，以及尘埃等离子体的潜在光子学应用。研究的更广泛影响包括对学生的培训以及通过出版物和讲座广泛传播结果。此外，还可能对等离子技术领域(例如，等离子加工和聚变)产生影响。