ECLIPSE: Miniaturization of Ultra-High-Power Laser Systems with Plasma Grating Chirped Pulse Amplification

ECLIPSE：采用等离子光栅啁啾脉冲放大的超高功率激光系统的小型化

• 批准号: 2308641
• 负责人: Matthew Edwards
• 金额: $ 48万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-06-01 至 2026-05-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2308641&HistoricalAwards=false
• 关键词: ECLIPSE; Miniaturization; Ultra; Power; Laser

This project explores the use of plasma elements in the construction of high-power laser systems. Lasers are an important tool for both fundamental science and commercial applications, but the light intensity delivered by the most powerful systems is limited by damage to their glass and metal optics. Plasma can withstand much higher light intensity than glass or other solid materials without being damaged. Plasma could therefore enable the miniaturization of ultra-high-power lasers, but taking advantage of this robustness in practical devices has proven difficult. This project uses detailed measurements of the optical properties of plasmas to improve the performance of plasma optics and integrate them into the design of short-pulse laser systems. Specific objectives are the improvement of plasma optic stability and the development of optics with properties suitable for use in larger systems. The overall goal is to develop laser architectures that integrate plasma components effectively, ultimately enabling higher power in smaller laser system footprints. This project will investigate the use of volumetric plasma transmission gratings in the design of chirped-pulse-amplification femtosecond laser systems, with the goal of developing architectures suitable for compact multi-petawatt lasers. Pump lasers can be used to shape plasmas with wavelength-scale optical-quality variations in density, allowing the creation of plasma transmission gratings and other diffractive optics. This type of plasma optic is relatively resilient to plasma density imperfections and further improvements in optical quality and stability could enable the replacement of solid-state diffraction gratings with plasma analogues, dramatically shrinking the size of the optics required for high-power femtosecond systems. This project focuses on the scientific and practical issues between demonstration of optical control with a plasma grating and the development of terawatt-scale plasma-based pulse compression, including grating stability, energy scaling, and the design of an optimal compressor architecture.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目探索了等离子体元件在建造高功率激光系统中的应用。激光是基础科学和商业应用的重要工具，但最强大的系统提供的光强度受到玻璃和金属光学损坏的限制。等离子体可以承受比玻璃或其他固体材料高得多的光强度，而不会受到损害。因此，等离子体可以实现超高功率激光器的小型化，但事实证明，在实际设备中利用这种健壮性是困难的。该项目使用对等离子体光学性质的详细测量来改进等离子体光学性能，并将其集成到短脉冲激光系统的设计中。具体目标是提高等离子体光学稳定性，并开发具有适合更大系统使用的特性的光学器件。总体目标是开发有效集成等离子体组件的激光架构，最终在更小的激光系统占地面积中实现更高的功率。本项目将研究体积等离子体传输光栅在啁啾脉冲放大飞秒激光系统设计中的应用，目标是开发适合于紧凑型多拍瓦激光器的结构。泵浦激光可以用来塑造具有波长级光学质量密度变化的等离子体，从而可以产生等离子体传输光栅和其他衍射光学元件。这种类型的等离子体光学器件对等离子体密度缺陷具有相对的弹性，光学质量和稳定性的进一步改进可以用等离子体类似物取代固态衍射光栅，大大缩小高功率飞秒系统所需的光学元件的尺寸。该项目专注于展示使用等离子体光栅的光学控制和开发太瓦级等离子体脉冲压缩之间的科学和实际问题，包括光栅稳定性、能量比例和最佳压缩机架构的设计。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。