[00135374]强激光涡旋反射镜

一种强激光涡旋反射镜,其特征在于：在光学玻璃或熔融石英基底上通过光刻的方法刻蚀出N瓣扇区N个台阶的微结构,第n个台阶对应的刻蚀深度为其中l为该涡旋反射镜携带涡旋的拓扑荷;n＝1,2,…,N,N取为2的高阶幂次值,如N＝4,8,16,32等。然后通过在该微结构上镀有45度入射下的高效率、高损伤阈值介质反射膜即构成强激光涡旋反射镜。从而使得45度入射的强激光通过该涡旋反射镜反射后变成45度出射的携带拓扑荷为l的涡旋强激光。这种具有涡旋相位波前的超强激光对于惯性约束核聚变具有重要的科学研究意义及潜在的实用价值。 | The invention provides an intense laser vortex reflector. The intense laser vortex reflector is characterized in that the microstructure of N steps of N sector regions is etched on an optical glass substrate or a fused quartz substrate through a photoetching method, the etching depth corresponding to the nth step is shown in the specification, wherein l is the topological loads of vortexes carried by the intense laser vortex reflector; n=1, 2,..., N, N is a high-order power value of 2, and for example, N=4 or 8 or 16 or 32. The microstructure is plated with a 45-degree incident medium reflection film with high efficiency and the high damage threshold, and the intense laser vortex reflector is formed; after being reflected by the vortex reflector, 45-degree incident intense lasers are changed into 45-degree emergent vortex intense lasers with the l topological loads. The super intense lasers with vortex phase wave front have important scientific research significance and potential practical value for inertial confinement nuclear fusion。