CAREER: Light-Matter Interactions in Low-Dimensional Graphitic Materials

***本学院早期职业奖资助一个研究低维石墨材料中新型光物质相互作用的项目。这种石墨结构，包括二维石墨烯和一维碳纳米管，具有显著的电学、力学和光学性质。这个研究项目将促进我们对这些新型碳材料的基本理解，这些知识可以使新型的电子和光子器件成为可能。它还提供了一个积极的学习环境，培养学生的跨学科技能。这个职业项目将利用加州大学伯克利分校多样化的学生群体和教育活动，包括伯克利边缘计划和加州大学伯克利分校教学平台，以提高科学和技术的广泛参与。***技术摘要***该学院早期职业奖资助了一个研究石墨烯和碳纳米管中新型光物质相互作用的项目。这些低维石墨体系卓越的物理性质已经激发了全世界对其输运研究的努力。提出的研究将促进我们使用单个纳米结构光谱学对其光物理的理解。CAREER项目将重点探索门控石墨烯双层中的狄拉克费米子物理，预计将展示迷人的伪自旋现象和非平凡的Berry？S相，以及在单个手性定义的碳纳米管中探测超快动力学和量子相干性。这项研究将揭示石墨材料的一系列重要动力学行为，包括电子相干性和消相机制以及能量转移过程。位于纳米科学和光学物理前沿的界面，拟议的研究为研究生和本科生提供了一个真正的跨学科学习环境。这种教育和推广工作将是这个研究项目的一个组成部分。

*** NONTECHNICAL ABSTRACT ***This Faculty Early Career Award funds a project that will investigate novel light-matter interactions in low-dimensional graphitic materials. Such graphitic structures, including two-dimensional graphene and one-dimensional carbon nanotubes, have remarkable electrical, mechanical, and optical properties. This research project will advance our fundamental understanding of these novel carbon materials, the knowledge of which could enable new type of electronic and photonic devices. It also provides an active learning environment to train students with interdisciplinary skills. This CAREER project will take advantage of the diverse student body and education activities in UC Berkeley, including the Berkeley Edge program and the Cal-Teach platform, to enhance broad participation in science and technology. ***TECHNICAL ABSTRACT***This Faculty Early Career Award funds a project that will investigate novel light-matter interactions in graphene and carbon nanotubes. The remarkable physical properties of these low-dimensional graphitic systems have spurred a worldwide effort in their transport studies. The proposed research will advance our understanding of their photophysics using individual nanostructure spectroscopy. The CAREER project will focus on exploring Dirac fermion physics in gated graphene bilayers, which is expected to exhibit fascinating pseudo-spin phenomena and non-trivial Berry?s phases, and on probing ultrafast dynamics and quantum coherence in individual chirality-defined carbon nanotubes. This research will shed light on a range of important dynamical behavior of graphitic materials, including electron coherence and dephasing mechanisms and energy transfer processes. Situated at the interface of nanoscience and optical physics frontiers, the proposed research provides a truly interdisciplinary learning environment for graduate students as well as undergraduate students. Such education and outreach effort will be an integral part of this research project.