论文标题
通过Speckle区域无效方法，对深孔控制的冠冕实验
Coronagraph Experiment on Dark-hole Control by Speckle Area Nulling Method
论文作者
论文摘要
在用于直接观察太阳系以外行星的高对比度成像光学系统中，需要具有lambda/10,000根均方根的自适应光学器件，以将斑点噪声降低至1E-10水平，除了消除衍射光的无效冠型。我们开发了斑点区域无效方法（SAN）方法作为一种新的深孔控制算法，尽管斑点无效，但能够快速在较大区域中控制斑点电场，并且不依赖于光学模型。我们用单色光进行了SAN方法的验证实验，并成功地将Areal Speckles的强度降低了4.4E-2。
In high-contrast imaging optical systems for direct observation of planets outside our solar system, adaptive optics with an accuracy of lambda/10,000 root mean square is required to reduce the speckle noise down to 1e-10 level in addition to the nulling coronagraph which eliminate the diffracted light. We developed the speckle area nulling (SAN) method as a new dark-hole control algorithm which is capable of controlling speckle electric field in a wide area quickly, in spite of an extension of speckle nulling, and is robust not relying upon an optical model. We conducted a validation experiment for the SAN method with a monochromatic light and succeeded in reducing the intensity of areal speckles by 4.4e-2.
