Socas-Navarro Hector
J Opt Soc Am A Opt Image Sci Vis. 2005 Mar;22(3):539-45. doi: 10.1364/josaa.22.000539.
A concept is described for the high-accuracy absolute calibration of the instrumental polarization introduced by the primary mirror of a large-aperture telescope. This procedure requires a small aperture with polarization-calibration optics (e.g., mounted on the dome) followed by a lens that opens the beam to illuminate the entire surface of the mirror. The Jones matrix corresponding to this calibration setup (with a diverging incident beam) is related to that of the normal observing setup (with a collimated incident beam) by an approximate correction term. Numerical models of parabolic on-axis and off-axis mirrors with surface imperfections are used to explore the accuracy of the procedure.
描述了一种用于大口径望远镜主镜引入的仪器偏振高精度绝对校准的概念。该过程需要一个带有偏振校准光学器件的小孔径（例如，安装在圆顶上），后面跟着一个透镜，该透镜打开光束以照亮镜子的整个表面。对应于该校准设置（具有发散入射光束）的琼斯矩阵通过一个近似校正项与正常观测设置（具有准直入射光束）的琼斯矩阵相关。使用具有表面缺陷的抛物面轴上和离轴镜的数值模型来探索该过程的精度。
