High power ultrashort pulsed laser

高功率超短脉冲激光器

• 批准号: 505114286
• 金额: --
• 依托单位: Ruhr-Universität Bochum
• 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/505114286?language=en
• 关键词: power; ultrashort; pulsed; laser

High power and high repetition rate ultrashort pulsed lasers (>30W, MHz-pulse frequency) enable a unique interaction between the laser pulse and any kind of matter which is not achievable by any other technology. The use of these lasers allows the combination of the high spatial and temporal precision with superior process speed and throughput. By the choice of optimal process parameters and appropriate environmental conditions both processes with minimal thermal impact like precise microcutting and thermally activated processes for e.g. the conversion of ultrathin 2D materials can be realized by these laser systems. The new system is planned as a replacement for a defect laser system which has been successfully used over the past decade to develop numerous new phenomena and processes. Due to the variety of research approaches the new laser should also offer a maximum of parameter flexibility. Ideally, the main laser parameters (pulse energy, pulse repetition frequency, pulse duration) can be adjusted during the process according to the required type of interaction. In addition, the possibility to change the laser wavelength by frequency conversion and the offer for pulse burst mode represent further crucial options in order to expand the field of applications.

高功率和高重复速率超短脉冲激光器（> 30W，MHz-Pulse频率）使激光脉冲与任何其他技术无法实现的任何类型的物质之间具有独特的相互作用。这些激光器的使用允许将高空间和时间精度与较高的过程速度和吞吐量组合在一起。通过选择最佳过程参数和适当的环境条件，这两种过程都具有最小的热效应，例如精确的微拆卸和热激活的过程，例如这些激光系统可以实现超薄2D材料的转换。该新系统被计划作为缺陷激光系统的替代品，该系统在过去十年中已成功使用，以开发许多新的现象和过程。由于研究方法种类繁多，新激光器还应提供最大的参数灵活性。理想情况下，可以根据所需类型的相互作用在过程中调整主激光参数（脉冲能量，脉冲重复频率，脉冲持续时间）。另外，通过频率转换更改激光波长的可能性和脉冲突发模式的报价代表了进一步的关键选择，以扩大应用程序的领域。