Kohler C, Haist T, Schwab X, Osten W
Institut für Technische Optik, Universität Stuttgart Pfaffenwaldring 9, 70569 Stuttgart, Germany.
Opt Express. 2008 Sep 15;16(19):14853-61. doi: 10.1364/oe.16.014853.
We report on first results obtained with two modified hologram optimization algorithms. These algorithms take into account the complex modulation characteristic of the spatial light modulators employed for hologram reconstruction. To this end the Jones matrices of the modulator as well as all other components of the setup are used within a modified direct binary search and an iterative Fourier transform algorithm. Geometrical phase effects are included in the optimization. Elimination of the analyzer behind the spatial light modulator is possible by that approach and for typical setups using twisted-nematic liquid crystal modulators an enhanced overall diffraction efficiency is achieved. Possible applications are the comparative digital holography and optical tweezers. Experimental results for the reconstructions of holograms with a Holoeye LC-R 3000 modulator are presented.
我们报告了两种改进的全息图优化算法所获得的初步结果。这些算法考虑了用于全息图重建的空间光调制器的复杂调制特性。为此，在改进的直接二进制搜索和迭代傅里叶变换算法中使用了调制器的琼斯矩阵以及设置中的所有其他组件。优化过程中考虑了几何相位效应。通过该方法可以省去空间光调制器后面的分析器，对于使用扭曲向列型液晶调制器的典型设置，可以提高整体衍射效率。可能的应用包括比较数字全息术和光镊。文中给出了使用Holoeye LC-R 3000调制器重建全息图的实验结果。
