Rosen Joseph, Brooker Gary
Department of Biology, Integrated Imaging Center, Johns Hopkins University, Rockville, MD 20850, USA.
Opt Lett. 2007 Apr 15;32(8):912-4. doi: 10.1364/ol.32.000912.
We present a new method for recording digital holograms under incoherent illumination. Light is reflected from a 3D object, propagates through a diffractive optical element (DOE), and is recorded by a digital camera. Three holograms are recorded sequentially, each for a different phase factor of the DOE. The three holograms are superposed in the computer, such that the result is a complex-valued Fresnel hologram. When this hologram is reconstructed in the computer, the 3D properties of the object are revealed.
我们提出了一种在非相干照明下记录数字全息图的新方法。光从三维物体反射，通过衍射光学元件（DOE）传播，并由数码相机记录。依次记录三张全息图，每张对应DOE的不同相位因子。这三张全息图在计算机中叠加，结果是一个复数值的菲涅耳全息图。当在计算机中重建此全息图时，物体的三维特性就会显现出来。
