1D-modulated plasmonic Dirac systems: Towards helicity-driven terahertz photovoltaics

一维调制等离子体狄拉克系统：迈向螺旋驱动的太赫兹光伏

• 批准号: 448955585
• 负责人: Professor Dr. Sergey Ganichev
• 金额: --
• 依托单位: Institut für Experimentelle und Angewandte Physik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/448955585?language=en
• 关键词: 1D; modulated; plasmonic; Dirac; systems

The focus of the project lies on the exploration of terahertz (THz) radiation induced electron transport in nanostructures with linear energy dispersion. The project, bringing together the expertise of five experimental and theoretical groups of the German-Russian consortium, aims at getting insight into the origin of helicity driven photovoltaic effects in 1D periodic modulated Dirac fermion systems. In particularly, we plan to explore the physics of helicity driven effects in plasmonic crystals of different geometries, current induced instabilities in these systems as well as effects of plasmonic interference. The research is focused on graphene lateral superlattices as well as on HgTe based topological insulators (TIs) and Dirac fermion systems. The work should define the limits of existing high frequency electronics and uncover new physical phenomena, thus extending the scope of future THz optoelectronic devices, in particular with respect to the development of an all-electric detector of the radiation Stokes parameters.

该项目的重点在于探索太赫兹（THz）辐射诱导的具有线性能量色散的纳米结构中的电子传输。该项目汇集了德俄联盟的五个实验和理论小组的专业知识，旨在深入了解一维周期性调制狄拉克费米子系统中螺旋驱动的光伏效应的起源。特别是，我们计划探索不同几何形状的等离子体晶体中螺旋驱动效应的物理原理、这些系统中电流引起的不稳定性以及等离子体干扰的影响。该研究重点是石墨烯横向超晶格以及基于 HgTe 的拓扑绝缘体 (TI) 和狄拉克费米子系统。这项工作应该定义现有高频电子器件的极限并揭示新的物理现象，从而扩展未来太赫兹光电器件的范围，特别是在辐射斯托克斯参数的全电探测器的开发方面。