Femtosecond Laser Facility

飞秒激光设备

• 批准号: 496567232
• 金额: --
• 依托单位: Gottfried Wilhelm Leibniz Universität Hannover
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2022
• 资助国家: 德国
• 起止时间: 2021-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/496567232?language=en
• 关键词: Femtosecond; Laser; Facility

A multidisciplinary consortium is jointly applying for a laser facility centered around a femtosecond laser system. Three beam lines serve experiments in physics, chemistry, and engineering. The system is selected to be flexible to meet different requirements. In the meantime, laser technology has advanced to the point where there are systems on the market that can be operated reliably even by non-experts. The targeted laser system is variable in pulse repetition rate and pulse energy; it also allows operation in burst mode. The system is to be set up in a hall being prepared especially for these experiments. It is equipped with the laser plus various diagnostic devices for the laser beam. This will be followed by beam stabilization and spatial beam shaping. This will then serve three experiments alternatively: The various research supplements reflect the breadth of current applications for femtosecond technology. Whereas in the past a separate laser system was required for each application, today highly flexible systems are available that can be easily adapted to very different applications. Specifically, the system is intended for the following purposes:* Applied physics and engineering: Multimodal femtosecond micro-material processing: combining subtractive and additive manufacturing as well as surface and ablation techniques and index modifications/waveguide writing. The precision delay station for micro material processing is already available, it will be transferred to one of the beam-lines and supplemented there with additional measurement technology. The goal of this research branch is the demonstration of 3D waveguides in polymers and glass with applications e.g. as quantum optical networks.* Femtochemistry: THz pump-probe spectroscopy on 2D semiconductor nanostructures. For this purpose, an existing THz generation stage will be attached to the system. Among others, novel single photon sources based on nanoplatelets will be investigated.* Fundamental physics: strong field physics, generation of high harmonics and of X-ray radiatio. For this purpose, existing vacuum apparatus and spectrometers will be transferred to the new hall. Plasma dynamics in filaments and the generation of soft X-rays via laser plasmas from nanoparticles will be investigated.The facility is designed to operate for 10 years and is planned to be flexible enough to be easily adapted to current developments and new experimental requirements.

一个多学科联合体正在联合申请一个以飞秒激光系统为中心的激光设施。三条光束线用于物理、化学和工程实验。该系统选择灵活，以满足不同的要求。与此同时，激光技术已经发展到市场上甚至可以由非专家可靠操作的系统。靶向激光系统的脉冲重复率和脉冲能量可变;它还允许在突发模式下操作。该系统将安装在一个专门为这些实验准备的大厅里。它配备了激光器和各种激光束诊断设备。随后将进行光束稳定和空间光束整形。这将服务于三个实验交替：各种研究补充反映了飞秒技术目前应用的广度。在过去，每个应用都需要一个单独的激光系统，而今天，高度灵活的系统可以很容易地适应不同的应用。具体而言，该系统旨在用于以下目的：* 应用物理和工程：多模飞秒微材料加工：结合减材和增材制造以及表面和烧蚀技术和折射率修改/波导写入。用于微材料加工的精密延迟站已经可用，它将被转移到其中一条光束线上，并在那里补充额外的测量技术。该研究分支的目标是演示聚合物和玻璃中的3D波导，例如量子光网络。Femtochemistry：THz pump-probe spectroscopy on 2D semiconductor nanostructures.为此，现有的THz生成阶段将连接到系统。其中，将研究基于纳米片的新型单光子源。基础物理学：强场物理学，高次谐波和X射线辐射的产生。为此，现有的真空设备和光谱仪将被转移到新的大厅。将研究细丝中的等离子体动力学和通过激光等离子体从纳米粒子产生软X射线，该设施的设计运行期为10年，计划具有足够的灵活性，易于适应当前的发展和新的实验要求。