In the catadioptric infraredoptical system, both aberration and second spectrum are corrected by using the same infraredopticalmaterial.
在折反系统中，用同一种红外材料实现了像差特别是二级光谱的校正。
2
A novel detector with confocal optical configuration was fabricated for detecting the weak emission light of infrared up-conversion material.
提出了一种利用共焦光学结构来检测红外上转换材料被激发光的方法。
3
Fluorogallate glass is a favorable kind of material for optical fiber lasers with transmitting infrared light at longer wavelength and lower phonon energy.