Tomkus Vidmantas, Girdauskas Valdas, Dudutis Juozas, Gečys Paulius, Stankevič Valdemar, Račiukaitis Gediminas
Opt Express. 2018 Oct 15;26(21):27965-27977. doi: 10.1364/OE.26.027965.
In this report, an efficient hybrid laser technique, nanosecond laser rear-side processing and femtosecond laser-assisted selective etching (FLSE) for the manufacturing of high-density gas capillary targets, is demonstrated. Cylindrical capillary nozzles for laser betatron X-ray sources were numerically simulated, manufactured from fused silica by 3D laser inscription and characterized using interferometry and gas density reconstruction. The dependence of gas concentration profiles on the wall roughness of cylindrical channels is presented.
在本报告中，展示了一种用于制造高密度气体毛细管靶的高效混合激光技术，即纳秒激光背面处理和飞秒激光辅助选择性蚀刻（FLSE）。对用于激光电子感应加速器X射线源的圆柱形毛细管喷嘴进行了数值模拟，通过3D激光刻写由熔融石英制造，并使用干涉测量法和气体密度重建进行了表征。给出了气体浓度分布对圆柱形通道壁粗糙度的依赖性。
