Optical tests of a 2.5-m-diameter liquid mirror: behavior under external perturbations and scattered-light measurements

被引:31
作者
Girard, L
Borra, EF
机构
[1] Centre d’Optique, Photonique et Laser, Département de Physique, Université Laval, QC
来源
APPLIED OPTICS | 1997年 / 36卷 / 25期
关键词
telescopes; mirrors; instrumentation;
D O I
10.1364/AO.36.006278
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Interferometric tests of an f/1.2, 2.5-m-diameter liquid mirror show rms surface deviations of similar to lambda/2a and Strehl ratios of the order of 0.6, which show that it is diffraction limited. The mirror is certainly better than what is implied by the data because of aberrations introduced by the auxiliary testing optics. We made detailed studies of the scattered light of the mirror. We studied the behavior of the mirror under external perturbations. Pie reached an important milestone because we now have a good understanding of liquid mirrors. (C) 1997 Optical Society of America.
引用
收藏
页码:6278 / 6288
页数:11
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