Pavillon Nicolas, Seelamantula Chandra Sekhar, Kühn Jonas, Unser Michael, Depeursinge Christian
Advanced Photonics Laboratory, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
Appl Opt. 2009 Dec 1;48(34):H186-95. doi: 10.1364/AO.48.00H186.
We present experimental validation of a new reconstruction method for off-axis digital holographic microscopy (DHM). This method effectively suppresses the object autocorrelation, namely, the zero-order term, from holographic data, thereby improving the reconstruction bandwidth of complex wavefronts. The algorithm is based on nonlinear filtering and can be applied to standard DHM setups with realistic recording conditions. We study the robustness of the technique under different experimental configurations, and quantitatively demonstrate its enhancement capabilities on phase signals.
我们展示了一种用于离轴数字全息显微镜（DHM）的新重建方法的实验验证。该方法有效地抑制了全息数据中的物体自相关，即零阶项，从而提高了复波前的重建带宽。该算法基于非线性滤波，可应用于具有实际记录条件的标准DHM设置。我们研究了该技术在不同实验配置下的鲁棒性，并定量地证明了其对相位信号的增强能力。
