GROC UJI, Institut de Noves Tecnologies de la Imatge, Universitat Jaume I, Castelló, Spain.
Opt Lett. 2013 Jul 15;38(14):2524-7. doi: 10.1364/OL.38.002524.
This Letter develops a framework for digital holography at optical wavelengths by merging phase-shifting interferometry with single-pixel optical imaging based on compressive sensing. The field diffracted by an input object is sampled by Hadamard patterns with a liquid crystal spatial light modulator. The concept of a single-pixel camera is then adapted to perform interferometric imaging of the sampled diffraction pattern by using a Mach-Zehnder interferometer. Phase-shifting techniques together with the application of a backward light propagation algorithm allow the complex amplitude of the object under scrutiny to be resolved. A proof-of-concept experiment evaluating the phase distribution of an ophthalmic lens with compressive phase-shifting holography is provided.
这封信件通过将相移干涉测量技术与基于压缩感知的单像素光学成像相结合，为光学波长的数字全息术建立了一个框架。输入物体的衍射场通过液晶空间光调制器用哈德玛模式进行采样。然后，通过马赫-曾德尔干涉仪，采用单像素相机的概念对采样的衍射图案进行干涉成像。相移技术以及反向光传播算法的应用允许解析被检测物体的复振幅。提供了一个使用压缩相移全息术评估眼科透镜的相位分布的概念验证实验。
