Shack-Hartmann wavefront sensor with the precorrected holographic lenslet array
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- 作者：D.V. Podanchuk ; V.P. Dan&rsquo ; ko ; A.A. Goloborodko ; angol@univ.kiev.ua ; N.S. Goloborodko
- 关键词：Shack&ndash ; Hartmann sensor ; Adaptive optics ; Holographic lenslet array ; Aberration measurements
- 刊名：Optik - International Journal for Light and Electron Optics
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：131
- 期：Complete
- 页码：520-526
- 全文大小：1465 K
- 卷排序：131
文摘
The method of the dynamic range expansion of the Shack–Hartmann wavefront sensor is discussed. It is based on the use of nonlinear dual focus holographic lenslet arrays with the aberration precompensation. The data concerning the optical setup and the technique of adaptive lenslet array producing based on nonlinear holographic recording phenomenon are represented. On the example of spherical wavefronts it is shown, that the use of three lenslet arrays with different amount of the aberration precompensation allows expanding approximately in five times the dynamic range of the sensor four times greater with preserving the specified sensitivity in comparison with the corresponding refractive lenslet array.