Ultrafast Laser-Produced Microstructured Plasmas for Soft X-ray Lasers

提案编号： ECS-9713254 主要研究者：亨利Kapteyn 职务名称： 用于软X射线激光的超快激光微结构等离子体 本文研究了激光与固体相互作用产生软X射线辐射的问题。 强度为1016-1018瓦特/平方厘米的超快激光脉冲聚焦到固体上，产生高度非平衡等离子体。 由激光-等离子体与固体相互作用形成的快速加热、快速冷却的等离子体发射出亚皮秒的x射线。 材料本身可以被图案化或“微结构化”，以有效吸收入射激光和发射X射线辐射。固体等离子体的加热和冷却可以通过所涉及的材料的性质和微结构来定制，高命运凹槽等。 这项工作成功的关键是高强度、短脉冲激光进行初始加热。 紧凑型软x射线激光器将在生物学和材料科学中有许多应用。

Proposal Number: ECS-9713254 Principal Investigator: Henry Kapteyn Title: Ultrafast laser produced microstructured plasmas for soft X-ray lasers In this resrach, investigations into the generation of soft x-ray radiation form a laser solid interaction will be investigated. An ultrafast laser pulse of intensity of 1016-1018 watts/cm2 is focused onto a solid, creating a highly nonequilibrium plasma. The rapidly heated, rapidly cooled plasma formed from the laser-plasma interaction with the solid emits sub-picosecond x-rays. The material itself can be patterned or "microstructured" for the efficient absorption of the incident laser light and the emission of the x-ray radiation. The heating and cooling of the solid plasma can be tailored by the properties of the material(s) involved and by the microstructure e.g., high destiny grooves etc.. Key to the success of this work is the high intensity, short pulse laser for the initial heating. Compact soft x-ray lasers will have many applications in biology and materials science.