高透明Al2O3陶瓷窗口

本文所介绍的高透明Ａｌ_２Ｏ_３窗口兼有以往许多种光电探测器窗口的优点：比如有极好的机械强度和硬度；较宽的光谱透射区域１９０－７０００ｎｍ；较高的总透射率（＞９０％）；优良的散射退偏振特性。并且因其具有适度的散射功能及与晶体Ａｌ_２Ｏ_３相似的透明波段，当它被用作激光探测器窗口时，可使激光较均匀地分布于探测表面，起到大幅度地提高探测器的抗激光损伤能力，同时降低探测元的非线性响应引起的测量误差的作用。

Scattering window material of opto-electronic detectors made of a newkind of Al_2O_3 ceromics

In this paper, a window made of thiskind of material will be of a better scattering depolarization, an improvement of damage threshhold, a wider transmission spectrum (190-7000nm), and a high totaltransmission (> 91%)in most of its working region. The special man made polycrystal-Al2O3ceromics are certainly a kind of helpful window materials for opto-electronic detectors.