Direct Binary Search Computer-Generated Holograms: An Accelerated Design Technique And Measurement Of Wavefront Quality
Direct Binary Search Computer-Generated Holograms: An Accelerated Design Technique And Measurement Of Wavefront Quality
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直接二分搜索计算机生成的全息图：一种加速设计技术和波前质量测量
DOI：
10.1117/12.951480
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发表时间：
1989
影响因子：
2.4
通讯作者：
D. Sweeney
中科院分区：
文献类型：
--
作者：
B. Jennison;J. Allebach;D. Sweeney
采用迭代直接二分搜索（DBS）算法合成计算机生成的二进制全息图（CGH’s），具有较低的重建误差和较高的衍射效率；但它是计算密集型的。为了改善这一缺点，提出了一种加速技术，使设计具有中等空间带宽积的CGH成为可能。与使用相位整形技术提高CGH合成的衍射效率相比，DBS的一个重要优势是能够控制重建波前的大小和相位。为了验证这种能力，开发了一种测量重建波前相位的程序。
The iterative direct binary search (DBS) algorithm for the synthesis of binary computer-generated holograms (CGH's) has been shown to yield lower reconstruction error and higher diffraction efficiency than conventional methods; but it is computationally intensive. To ameliorate this disadvantage, an acceleration technique is described which makes feasible the design of CGH's with moderate space-bandwidth product. The ability to control both the magnitude and phase of the reconstructed wavefront is an important advantage of DBS over the use of phase shaping to improve diffraction efficiency with conventional methods for CGH synthesis. To verify this capability, a procedure has been developed for measuring the phase of the reconstructed wavefront.