Femtosecond Laser Facility

一个多学科联合体正在联合申请以飞秒激光系统为中心的激光设施。三条光束线服务于物理、化学和工程实验。该系统的选择是灵活的，以满足不同的需求。与此同时，激光技术已经发展到了市场上有即使是非专家也能可靠操作的系统的地步。目标激光系统在脉冲重复频率和脉冲能量上是可变的；它还允许在脉冲模式下操作。该系统将被设置在一个专门为这些实验准备的大厅里。它配备了激光加上各种激光光束诊断设备。随后将进行光束稳定和空间光束整形。然后，这将交替服务于三个实验：各种研究补充资料反映了当前飞秒技术应用的广度。在过去，每种应用都需要单独的激光系统，而今天，高度灵活的系统可以很容易地适应非常不同的应用。具体地说，该系统用于以下目的：*应用物理学和工程学：多模式飞秒微材料加工：结合减法和加法制造以及表面和烧蚀技术以及折射率修改/波导写入。用于微小材料加工的精密延迟站已经建成，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。这一研究分支的目标是展示聚合物和玻璃中的三维波导，以及作为量子光学网络的应用。*飞秒化学：二维半导体纳米结构上的太赫兹泵浦探测光谱学。为此，将在该系统上安装一个现有的太赫兹产生级。在其他方面，将研究基于纳米小片的新型单光子源。*基础物理学：强场物理、高次谐波的产生和X射线辐射。为此，现有的真空设备和光谱仪将转移到新的大厅。将研究细丝中的等离子体动力学以及通过激光等离子体从纳米颗粒中产生软X射线。该装置的设计运行时间为10年，计划具有足够的灵活性，以便于适应当前的发展和新的实验要求。

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.