New method of one-step rainbow holography of diffuse three-dimensional objects with no slit

Abstract

A new method of one-step rainbow holography of diffuse three-dimensional objects with no slit is proposed. Diffuse three-dimensional objects are translated uniformly along the direction of the y(0) axis. A coherent plane wave illuminates the objects and its propagation direction is situated on the x(0)-z(0) plane. As a result of this process, a sinc function modulating the complex amplitude distribution of the objects is produced in the back focal plane of the lens. Therefore, rainbow holography is achieved. Theoretical analysis and some experimental results are presented.