NSF CAREER: Enhancing the Optical Properties of Topological Dirac and Weyl Semimetals

NSF 职业：增强拓扑狄拉克和韦尔半金属的光学性质

• 批准号: 2047905
• 负责人: Thomas Searles
• 金额: $ 55.68万
• 依托单位: Howard University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-06-01 至 2027-05-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2047905&HistoricalAwards=false
• 关键词: NSF; CAREER; Enhancing; Optical; Properties

Advances in materials science are instrumental to the success of each industrial revolution of the modern world, including the current quantum revolution. To achieve the technological advantages rooted in the basis of quantum mechanics, the United States established the National Quantum Initiative which included quantum materials and the formation of a “quantum-smart” workforce. In this project, the Principal Investigator aims to address both requirements through an integrated research and education plan centered around enhancing materials whose physical properties are robust against deformation. Therefore, the project addresses the specific need for experimental studies of materials with technologies and applications in light controlled electronic and photonics devices. Through measurements under the influence of large electric and magnetic fields, the Principal Investigator and his team will assess the performance for increased reliability, speed and durability leading to quantum-enabled communications, computing, and sensing. Furthermore, the comprehensive education plan broadly impacts the scientific community and integrates the research to increase participation in high magnetic field science, especially from the Historically Black Colleges and Universities (HBCUs) physics and materials science communities. The research plan merges nonlinear optics and plasmonics to explore important scientific challenges such as doping of topological semimetals, the influence of high magnetic fields on Dirac and Weyl semimetals and the existence of Dirac and Weyl semimetals as naturally occurring negative index materials in the technologically important infrared regime. Nonlinear optical spectroscopy techniques in the infrared to terahertz range will be used to study how the optical properties of topological semimetals are enhanced by: reducing dimensionality (bulk vs. monolayer); patterning into metasurfaces or hybrid metamaterials; and applying external fields (DC, optical/THz or magnetic field). The Principal Investigator will also broadly impact the scientific community through an integrated research and education plan that: distributes, low-cost, long duration pulsed high magnetic field (up to 10 T) apparatus to the HBCU Physics Community for increased participation in High Magnetic Field science; integrates the apparatus into the physics curricula at Howard and 4 partner HBCUs; and improves the physics identity of Black undergraduate Physics students through workshops hosted at Howard and the National Society of Black Physics Meeting. Further outreach to the scientific community includes the creation of a YouTube and Slack channels specific to development of low-cost pulsed magnetic field apparatus.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.

材料的进步是对现代世界的企业革命的起源，雷动还源于量子力学的基础，其中包括量子材料和“量子 - 零件”的劳动力。研究者的目标是通过研究和教育计划材料增加了需求，其物理性能是鲁棒的，对数学和光控制电子设备的实验研究的特定需求。首席研究人员及其团队将评估提高，速度和耐用性，从而导致量子的通信，计算和感知。尤其是从历史上的黑人学院和大学中，该研究计划合并了非线性光学和质量索取，以恳求恳求恳求诸如dirac和weyl semimetals of Dirac和weyl semimetals的高磁场等高磁场等诸如高磁场的挑战自然发生的负面材料。领域。 HBCUS;通过在CK物理学会举行的研讨会，改善Blacs Thysics的统计。使用基金会和更广泛的影响审查标准的支持和值得支持的态度。