泽尼克多项式
光学
波前
探测器
全息术
物理
基点
波前传感器
强度(物理)
光强度
像素
自适应光学
变形镜
作者
Fanpeng Kong,Andrew Lambert
出处
期刊:Applied optics
[The Optical Society]
日期:2016-04-28
卷期号:55 (13): 3615-3615
被引量:22
摘要
The Zernike coefficients of a light wavefront can be calculated directly by intensity ratios of pairs of spots in the reconstructed image plane of a holographic wavefront sensor (HWFS). However, the response curve of the HWFS heavily depends on the position and size of the detector for each spot and the distortions introduced by other aberrations. In this paper, we propose a method to measure the intensity of each spot by setting a threshold to select effective pixels and using the weighted average intensity within a selected window. Compared with using the integral intensity over a small window for each spot, we show through a numerical simulation that the proposed method reduces the dependency of the HWFS’s response curve on the selection of the detector window. We also recorded a HWFS on a holographic plate using a blue laser and demonstrated its capability to detect the strength of encoded Zernike terms in an aberrated beam.
科研通智能强力驱动
Strongly Powered by AbleSci AI