Modulating and engineering Luttinger liquid plasmons in low dimensional materials

摘要碳纳米管正在成为越来越重要的技术转化纳米材料系统：在过去的十年里，对碳纳米管生长和排列的研究导致了先进的集成电子系统的展示，如碳纳米管计算机处理器。电子功能的一个重要补充是光学功能，其中碳纳米管有潜力产生、检测和引导用于传感器和通信模块的光，以一种与基于碳纳米管的电子逻辑器件无缝集成的方式。提出的工作将探索纳米管作为红外波长先进光电器件的能力。特别是，引导和定位光的基本限制将阐明使用新的计算方法和新的实验材料制备和表征方法。该项目的教育目标是与小学教师合作，传播教育和激励高中生STEM的新课程。技术摘要等离子体在一维系统中的传输和压缩的极限仍然是难以捉摸的。相关的开放问题包括等离子激振的基本方面，如它们的寿命、动力学和一维单壁碳纳米管（SWCNTs）和混合维系统中的量子等离子激振色散。我们建议建立基于先进材料生长和纳米制造方法、高分辨率光学探测和高性能第一性原理计算的新方法，以阐明强受限一维等离子体系统的潜在物理。这项研究建立在我们对化学气相沉积生长的晶圆级SWCNTs和近场光学仪器的开发和研究的基础上。该项目将导致对一维量子等离子体，其与其他等离子体系统的耦合，量子受限Luttinger液体状态下相关物理的新基本理解。我们还期望我们新开发的实验和理论方法将广泛应用于其他凝聚态体系的研究。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

Nontechnical AbstractCarbon nanotubes are becoming an increasingly important nanomaterials system for technological translation: over the last ten years, research in the growth and alignment of carbon nanotubes has led to the demonstration of advanced integrated electronic systems such as carbon nanotube computer processors. An important complement to electronic functionality is optical functionality, where carbon nanotubes have the potential to generate, detect, and guide light for use in sensors and communication modules, in a manner that seamlessly integrates with carbon nanotube-based electronic logic devices. The proposed work will explore the ability for nanotubes to serve as advanced optoelectronic devices at infrared wavelengths. In particular, the fundamental limits for guiding and localizing light will be elucidated using new computational methods and new experimental materials preparation and characterization methods. The education goal of this project is to work with grade school teachers to disseminate new curricula that educates and inspires high school students in STEM.Technical AbstractThe ultimate limits of plasmon propagation and compression in one-dimensional systems remain elusive. The related open questions include fundamental aspects of plasmonic excitations such as their lifetimes, dynamics, and quantum plasmonic dispersion in one-dimensional single-walled carbon nanotubes (SWCNTs) and mixed-dimensional systems. We propose to establish new methodologies, based on advanced materials growth and nanofabrication methods, high-resolution optical probing, and high-performance first-principles calculations, to elucidate the underlying physics of strongly confined one-dimensional plasmonic systems. The study builds on our development and study of chemical vapor deposition-grown wafer-scale SWCNTs and near-field optical instrumentation. This project will lead to new fundamental understandings of one-dimensional quantum plasmons, its coupling with other plasmonic systems, the relevant correlated physics within the quantum confined Luttinger liquid regime. We also anticipate that our newly developed experimental and theoretical methods will broadly apply to the study of other condensed matter systems.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.