Floquet engineering of transition metal dichalcogenides via time-resolved photoemission

通过国家研究科学研究所、埃纳吉·梅特里克·TéL通信研究中心(INRS-EMT)和波尔多大学(西莉亚实验室)之间的这一新颖的国际合作，我们的目标是为明天的基于量子的技术奠定基础。我们将研究如何使用超快激光脉冲来有效地调节量子材料的电子性质，并在超快时间尺度上驱动物质的新量子相的出现。这项前沿研究将通过在INRS和U-Bordeaux结合两个互补且独特的全球时间分辨光电子发射系统来实现，从而对量子材料中的电子如何对强光激励做出反应提供前所未有的见解。这些研究工作将集中在过渡金属二卤化物(TMD)的电子性质的光控制上，这是开发新型自旋电子器件和光电子器件的一个有前途的平台。特别是，通过利用超短激光脉冲的时间周期性，我们的目标是通过根据需要调整电子在物质中的相互作用来设计TMD的光学和传输特性。这个项目将在INRS和波尔多大学之间建立一个新的合作伙伴关系，这将导致在量子物质光控制的新兴领域培养高素质的人员。此外，这项研究将建立新的按需控制量子材料的实验协议，有效地使加拿大在下一代光电子器件的设计和工程方面处于有利地位。

Through this novel international collaboration between the institut national de la recherche scientifique, Énergie Matériaux Télécommunications Research Centre (INRS-EMT), and the University of Bordeaux (CELIA lab), we aim to establish the roots for the quantum-based technology of tomorrow. We will investigate how ultrafast laser pulses can be used to effectively tune the electronic properties of quantum materials and drive the emergence of novel quantum phases of matter on ultrafast timescales. This forefront study will be enabled by combining two complementary and unique worldwide time-resolved photoemission systems at INRS and U. Bordeaux, thus granting unprecedented insights into how electrons react to intense light excitations inside quantum materials.These research efforts will focus on the light-control of the electronic properties of transition metal dichalcogenides (TMDs), which are a promising platform for developing novel spintronic and optoelectronic devices. In particular, by taking advantage of the temporal periodicity of ultrashort laser pulses, we aim to engineer the optical and transport properties of TMDs by tuning how electrons interact inside the matter on demand.This project will seed a new collaboration between INRS and U. Bordeaux, which will result in the training of highly qualified personnel in the emergent field of light-control of quantum matter. Moreover, this research will establish new experimental protocols for on-demand control of quantum materials, effectively placing Canada in a privileged position for the design and engineering of next-generation optoelectronic devices.