Titan-Saphir Lasersystem (UV-NIR)

钛蓝宝石激光系统（UV-NIR）

• 批准号: 427284669
• 金额: --
• 依托单位: Technische Universität Dortmund
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/427284669?language=en
• 关键词: Titan; Saphir; Lasersystem; UV; NIR

We apply for a frequency-stabilized Ti-sapphire laser SolsTiS plus pump laser fabricated by the company M squared, which shall be extended with corresponding modules so that it can be operated across the whole spectral range from the near-UV (> 200 nm wavelength) to the near-IR (< 4,5 micrometer wavelength). This large range is necessary to study the different material classes addressed at the chair Experimentelle Physik 2 together with our collaboration partners. The material spectrum has been recently extended from traditional III-V and II-VI semiconductors to materials such as colloidal nanostructures, perovskites and 2D-materials, the band gaps of which can be varied across this spectral range by changing structural composition and size. The laser system of the company M squared is the only one commercially available, which can cover this wavelength range in combination with excellent parameters such as linewidth (< 0,5 MHz, in the visible < 100 kHz), sufficient emission power (at least several tens of mW at high temporal stability), and low intensity noise (< 0,3 % rms). Also the excellent beam quality in the TEM00-mode has to be mentioned. In addition, the system is very tightly arranged and robust in combination with full automatization, ensuring a flexible operation.

我们申请的是M Square公司生产的稳频钛蓝宝石激光Solstis Plus泵浦激光器，它应该扩展相应的模块，以便它可以在从近UV(&gt；200 nm波长)到近IR(&lt；4，5微米波长)的整个光谱范围内工作。这一大范围对于与我们的合作伙伴一起在实验物理2主席上研究不同的材料类别是必要的。材料光谱最近已经从传统的III-V和II-VI半导体扩展到胶体纳米结构、钙钛矿和2D材料，其带隙可以通过改变结构组成和尺寸在这个光谱范围内改变。M Square公司的激光系统是商业上唯一可以覆盖该波长范围的激光系统，它可以结合出色的参数来覆盖该波长范围，例如线宽(&lt；0.5 MHz，在可见光&lt；100 kHz)、足够的发射功率(在高时间稳定性下至少几十mW)和低强度噪声(&lt；0.3%均方根)。此外，还必须提到在TEM00模式下极佳的光束质量。此外，系统排列非常紧凑，结合完全自动化，功能强大，确保了灵活的操作。