具有空间滤波性能的全息滤波器

Holographic Filter with Spatial Filtering Action

目前通用的针孔滤波器存在调整困难及对大功率激光器因聚焦原因易产生空气电离与烧蚀基底等弊病，影响光束质量．本文用自行研制的红敏光致聚合物感光材料制成全息滤波器，从理论与实践上证明了透射体积全息图具有高度角度灵敏性。

The practice indicates that pinhole filter is adjusted very difficultly and because of air ionization and burning in base material as focus of big energy laserbeam, quality of laser beam is influenced. According to H Kogelnik Coupled wavetheory, we proved that transmission volume hologram has very high angle sensitifpinhole filter.