SOLSTICE - SOLids in Strong Terahertz and Infrared CE-phase-stable waveforms

SOLSTICE - 强太赫兹和红外 CE 相位稳定波形中的固体

• 批准号: 281310551
• 负责人: Professor Dr.-Ing. Franz Xaver Kärtner
• 金额: --
• 依托单位: Deutsches Elektronen-Synchrotron (DESY)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/281310551?language=en
• 关键词: SOLSTICE; SOLids; Strong; Terahertz; Infrared

Lightwave-driven electronic dynamics occurring on sub-optical-cycle time scales in condensed-matter and nanosystems is a fascinating frontier of attosecond science originally studied in atoms and molecules. Adapting attosecond metrology techniques to observe and control the fastest electronic dynamics in the plethora of known solids and novel quantum materials holds great promise for a wealth of fundamental scientific discoveries, thereby potentially impacting future technologies such as emerging petahertz electronic signal processing or strong-field optoelectronics.In the second funding period of the SOLSTICE project, we want to continue our ongoing research investigating solids irradiated by strong terahertz (THz) and tailored infrared (IR) carrier-envelope phase (CEP)-stable optical waveforms. In particular, studying high-harmonic generation (HHG), which is one of the cornerstones of attosecond science serving here as paradigm of a nonperturbative strong-field process, we want to elucidate in greater depth the physical similarities and differences compared to the corresponding process in atomic and molecular gases. Most importantly, we want to explore the unprecedented capabilities emerging from tailored intense IR-THz fields and secondary attosecond HHG sources for advanced spectroscopic applications.In this joint experiment/theory project, by combining HHG experiments with ab-initio time-dependent density-functional theory (TDDFT) simulations, we want to extend HHG from semiconductors and insulators to more complex solids including two-dimensional (2D) materials, strongly correlated materials, and topological insulators. This project is thus expected to break new ground in combining strong-field attoscience and Mott-Hubbard physics. Polarization-state-resolved high-harmonic spectroscopy sensitive to sub-cycle electronic and structural dynamics will open up new avenues in ultra-fast spectroscopy of quantum materials. We will synthesize "perfect waveforms" for atomic-like HHG from 2D materials and compare it to the gas-phase counterpart. We also want to explore new opportunities of THz-dressing-based symmetry control manifesting in HHG from crystals. Furthermore, time-resolved spectroscopy with isolated attosecond XUV pulses and sub-cycle optical waveforms permits to study dynamics in materials featuring strong excitonic effects such as 2D materials.Beside tackling fundamental physical questions in this project, our research efforts also aim to push the present technological limitations of solid-HHG to realize bright and compact solid-state attosecond XUV sources and VUV/XUV frequency combs for future spectroscopies.

在凝结物和纳米系统中发生的灯光驱动的电子动力学是最初在原子和分子中研究的Attosecond Science的一个迷人的前沿。 Adapting attosecond metrology techniques to observe and control the fastest electronic dynamics in the plethora of known solids and novel quantum materials holds great promise for a wealth of fundamental scientific discoveries, thereby potentially impacting future technologies such as emerging petahertz electronic signal processing or strong-field optoelectronics.In the second funding period of the SOLSTICE project, we want to continue our ongoing research investigating solids被强泰赫兹（THZ）和量身定制的红外（IR）载波 - envelope阶段（CEP） - 稳定的光波形辐照。特别是，研究高谐波产生（HHG），这是Attosend Science的基石之一，在这里充当非扰动强场过程的范式，我们希望在与原子和分子气中相应的过程相比，更深入地阐明物理相似性和差异。最重要的是，我们希望探索从量身定制的IR-THZ领域和高级光谱应用HHG来源中探索的前所未有的功能。在该联合实验/理论项目中，通过将HHG实验与AB-INITIO时间相关的密度官能论（TDDDF）相结合，可以将HHG实验结合到HHG实验，以实现AB-Intio ob-initio tdddd forments（tddd ftddd ftddd）。固体包括二维（2D）材料，密切相关的材料和拓扑绝缘子。因此，预计该项目将在结合强场Attoscience和Mott-Hubbard物理学方面打破新的基础。对亚周期电子和结构动力学敏感的偏振状态分辨高谐波光谱法将在量子材料的超快速光谱中开辟新的途径。我们将从2D材料中合成类似于原子的HHG的“完美波形”，并将其与气相对应物进行比较。我们还想探索从晶体中HHG中表现出的基于THZ涂层的对称控制的新机会。此外，与隔离的XUV脉冲和亚周期光波形的分离时间分解的光谱允许允许在具有强烈的激发效应（2D材料）的材料中研究动力学。在该项目中解决基本的物理问题，我们的研究工作还旨在推动固体/稳固型的频率效果，以推动实心/稳固的效果，以推动实心的效果，并构成了良好的态度，并构成了良好的迹象。光谱学。