Institut für Technische Optik, Universität Stuttgart, Pfaffenwaldring 9, Stuttgart 70569, Germany.
Opt Lett. 2013 Apr 15;38(8):1328-30. doi: 10.1364/OL.38.001328.
In this Letter we show how resolution enhancement and autofocusing in digital holographic microscopy is obtained by using structured illumination generated by a spatial light modulator, which enables it to project fringes of different orientations and phase shift without mechanical movement. The image plane is numerically determined by searching for the minimal deviation between the reconstructed images carried by different diffraction orders of the structured illuminations.
在这封信中，我们展示了如何通过使用空间光调制器产生的结构照明来实现数字全息显微镜中的分辨率增强和自动聚焦，这使得它能够在不进行机械运动的情况下投影不同方向和相移的条纹。通过搜索不同结构照明衍射级的重建图像之间的最小偏差，来确定像面的数值。
