Laser-Plasma-Wechselwirkung mit ultraintensiver kurzwelliger Laserstrahlung

激光等离子体与超强短波激光辐射的相互作用

• 批准号: 5369097
• 负责人: Professor Dr. Roland Sauerbrey
• 金额: --
• 依托单位: Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2002
• 资助国家: 德国
• 起止时间: 2001-12-31 至 2004-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5369097?language=en
• 关键词: Laser; Plasma; Wechselwirkung; mit; ultraintensiver

The study of laser-matter interaction at high intensities has become a field at the forefront of modern physics. Numerous novel effects at high intensities have been discovered, as above threshold ionization and stabilization in high-field atomic physics, as high harmonic generation in non-pertubative non-linear optics or guiding and channeling processes and hot electron formation in relativistic laser-plasma interactions. Furthermore, the use of intense short laser pulses has opened new possibilities for the generation of coherent and incoherent x-rays with important applications in science and technology. In this common project it is planned to study high-intensity laser-matter interaction especially at short wavelengths in order to evaluate possible advantages of short-wavelength laser systems for nonlinear optical processes to generate powerful coherent vuv and xuv radiation and for the efficient conversion of laser radiation into incoherent x-rays. The investigations will also include the development of corresponding shortwavelength laser sources and the up-scaling to ultrahigh intensities. It detail, the IOQ will investigate the conversion of laser radiation at wavelengths of 400 nm and below into incoherent x-rays, the IQ will investigate low order nonlinear optical frequency conversion of short-pulse KrF laser radiation at 248 nm to generate powerful coherent radiation at specific wavelengths (150 nm, 82.8 nm and 49.7 nm) and the LLG will study the short-pulse amplification and energy extraction of discharge and e-beam pumped KrF amplifiers to realize, in cooperation with the CIAE, systems with intensities in the range of 1020 Wcm-2.

高强度激光与物质相互作用的研究已成为现代物理学的前沿领域。在高强度下，人们发现了许多新的效应，如高场原子物理中的阈上电离和稳定化，非微扰非线性光学中的高次谐波产生，相对论激光与等离子体相互作用中的引导和沟道过程以及热电子形成等。此外，强短激光脉冲的使用为产生相干和非相干X射线开辟了新的可能性，在科学和技术中具有重要应用。在这个共同的项目中，计划研究高强度激光与物质的相互作用，特别是在短波长下，以评估短波长激光系统在非线性光学过程中产生强大的相干真空紫外和xuv辐射以及将激光辐射有效转换为非相干x射线方面的可能优势。调查还将包括开发相应的短波激光源和将其放大到1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 IOQ将研究波长为400 nm及以下的激光辐射转换为非相干x射线，IQ将研究248 nm短脉冲KrF激光辐射的低阶非线性光学频率转换，以产生特定波长的强大相干辐射LLG将研究放电和电子束泵浦KrF放大器的短脉冲放大和能量提取，以实现与CIAE合作，强度在1020 Wcm-2范围内的系统。