论文标题
反射涂层的极化损失
Polarization loss in reflecting coating
论文作者
论文摘要
在激光引力波中检测器光损失限制了灵敏度。我们将极化散射作为光损耗的另一种可能机制。循环内部干涉仪的光是偏振光，在反射后其极化平面可能会稍微变化，因为反射镜的涂层可以沿镜头表面的平面（光学各向异性）沿轴$ x，\，y $具有略有不同的折射率。这种各向异性可以在制造过程中产生（弹性效应）。这种正交极化光在腔体中增强，会产生极化光损耗。镜子的极化图非常重要，我们建议对其进行测量。在不同的精度光学实验中，基于极化光的使用，例如在量子速度计中，极化损失可能很重要。
In laser gravitational waves detectors optical loss restricts sensitivity. We discuss polarization scattering as one more possible mechanism of optical losses. Circulated inside interferometer light is polarized and after reflection its plane of polarization can turn a little due to reflecting coating of mirror can have slightly different refraction index along axes $x,\, y$ in plane of mirror surface (optical anisotropy). This anisotropy can be produced during manufacture of coating (elasto-optic effect). This orthogonal polarized light, enhanced in cavity, produces polarization optical loss. Polarization map of mirrors is very important and we propose to measure it. Polarization loss can be important in different precision optical experiments based on usage of polarized light, for example, in quantum speed meter.
