Advancing the characterization of solids: from rocks to quantum materials

推进固体表征：从岩石到量子材料

• 批准号: RGPIN-2020-07085
• 负责人: Jones, David
• 金额: $ 2.04万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=741585
• 关键词: Advancing; characterization; solids; rocks; quantum

Modern science and engineering rely more and more extensively on the utilization of technologically advanced forms of spectroscopy. In fields as diverse as medicine, biology, physics, chemistry, and material science, there is a constant effort to develop novel spectroscopic tools and techniques as they play a fundamental role in the generation of new intuition, concepts, and understandings. Ultrafast spectroscopy employs femtosecond optical pulses to probe materials on ultrashort time scales. The research program encompasses two separate thrusts. First, these pulses can create controlled non-equilibrium electronic conditions to reveal physical properties not accessible at equilibrium. Generally, these photonic-based coherent control methods are implemented to drive and control internal quantum states in the condensed phase and are critical towards the full understanding, as well as eventual practical implementation, of quantum materials (QM) for future quantum technologies. Toward this end we pursue the development of new/customized femtosecond laser sources and accompanying spectroscopic techniques - such as time- and angle-resolved photoemission spectroscopy - to unravel properties of QM. By applying expertise in ultrafast optics, material growth and condensed matter, the research program aims to meet the extreme requirements of these sources enabling the photonic manipulation of quantum states and phases. Second, the development of a new visible/near ultraviolet Dual Frequency Comb Spectroscopy (DFCS) system for optical spectroscopy of ablation plasmas initially, and QM characterization in the longer term. DFCS has emerged as a technique combining high frequency resolution, broad spectral coverage and rapid acquisition for spectroscopic probing of materials, but there is a lack of DFCS sources in the visible spectral region. Our short-term goal is to develop a broad instantaneous DFCS comb source with high spectral brightness and tuneability. We will use this source to develop real time sorting of mining ore based on elemental and mineralogical composition. Longer term, this source will be integrated into a multidimensional coherent spectroscopy system for studying coupling and coherence in QM. By adapting approaches and refining expertise established in optical physics, we are constructing new laser-based ultrafast spectroscopy sources and associated techniques and applying them to unlock the vast potential of QM - from solar harvesting windows to qubits for quantum computing. Our efforts will also improve the mining sustainability through improve ore sorting technology. More broadly, this proposed research program will provide HQP with unique technical skills along with enhanced leadership training, ensuring that they are able to emerge as leaders ready to meet the demands of both academia and industry. Ultimately, supporting collaborative and innovative research like mine will ensure that Canada's position as a global leader grows.

现代科学和工程越来越广泛地依靠技术先进形式的光谱法利用。在医学，生物学，物理，化学和材料科学等多样化的领域中，在新的直觉，概念和理解的产生中发挥基本作用时，一直在努力开发新型的光谱工具和技术。超快光谱法采用飞秒光脉冲来探测超短时间尺度的材料。该研究计划包括两个单独的推力。首先，这些脉冲可以产生受控的非平衡电子条件，以揭示在平衡下无法获得的物理特性。通常，这些基于光子的一致控制方法是在凝结阶段驱动和控制内部量子状态的，对于对未来量子技术的量子材料（QM）的全面理解以及最终的实际实施至关重要。为此，我们追求新/定制的飞秒激光源的开发以及随附的光谱技术（例如时间和角度分辨光发射光谱），以揭示QM的特性。通过在超快光学，材料生长和冷凝物质上应用专业知识，该研究计划旨在满足这些来源的极端要求，从而实现量子状态和阶段的光子操作。其次，开发新的可见/近紫外线双频率梳光谱（DFCS）系统，用于最初的融化等离子体光谱，并在长期内进行QM表征。 DFC已成为一种结合高频分辨率，宽光谱覆盖范围和快速获取材料的技术，但是可见光谱区域中缺乏DFCS源。我们的短期目标是开发具有高光谱亮度和可调性的广泛瞬时DFC梳子源。我们将使用此源基于元素和矿物学成分来开发采矿矿石的实时排序。从长远来看，该源将集成到多维相干光谱系统中，以研究QM中的耦合和相干性。通过适应方法和在光学物理学中建立的专业知识，我们正在构建基于激光的超快光谱源和相关技术，并将其应用于QM的巨大潜力 - 从太阳能收获窗口到Qubits进行量子计算。我们的努力还将通过改善矿石分类技术来改善采矿可持续性。从更广泛的角度来看，该提议的研究计划将为HQP提供独特的技术技能以及增强的领导培训，以确保他们能够成为领导者准备满足学术界和行业需求的领导者。最终，支持像我这样的协作和创新研究将确保加拿大作为全球领导者的地位发展。