论文标题
高角度分辨率干涉测量值
A high angular resolution interferometric backscatter meter
论文作者
论文摘要
反向散射限制了许多干涉测量值，包括重力波检测器，通过产生虚假干扰。我们描述了一种直接和定量测量反向散射干扰的实验方法。我们在反向散射干扰，梁半径与散射样品双向反射率分布函数之间进行实验性验证。我们还证明，我们的方法能够以低至500 URAD的高品质光学元件的反向散射测量，并具有160个URAD角度分辨率。
Backscatter limits many interferometric measurements, including gravitational wave detectors, by creating spurious interference. We describe an experimental method to directly and quantitatively measure the backscatter interference. We derive and verify experimentally a relation between backscatter interference, beam radius and the scattering sample bidirectional reflectance distribution function. We also demonstrate that our method is able to measure backscatter from high quality optics for angles as low as 500 urad with a 160 urad angular resolution.
