Pulse compressed gratings (PCG) used in chirped-pulse amplification system and based on multi-layer thin film stack are etched with ion-beam and holographic techniques.

• 应用于啁啾脉冲放大技术中的脉宽压缩光栅是基于多层膜作为基底,利用全息干涉技术和离子束技术刻蚀而成。