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Complex-amplitude single-pixel imaging using coherent structured illumination
Optics Express ( IF 3.8 ) Pub Date : 2021-12-01 , DOI: 10.1364/oe.443258
Hong-Yun Hou , Ya-Nan zhao , Jia-Cheng Han , Shengwei Cui , Dezhong Cao , Hongchao LIU , suheng zhang , Baolai Liang

This research presents a coherent structured illumination single-pixel imaging scheme to image objects with complex amplitudes. By utilizing a phase-only spatial light modulator for phase modulation, we can efficiently generate the Hadamard basis structured light and the reference light that interfere with each other to form the coherent structured illumination. Using the 4-step phase-shifting, the spectrum of the object is acquired by detecting the zero-frequency component of the object light with a single-pixel photodetector. The desired complex-amplitude image can be further retrieved by applying an inverse Hadamard transform. The proposed scheme is experimentally demonstrated by imaging two etched glass objects, a dragonfly wing, and a resolution test chart. Benefiting from the phase modulation, this scheme has a high efficiency, a high imaging quality, a high spatial resolution, and a simple and stable configuration to obtain both the phase and amplitude information of the target object. The proposed scheme provides a promising complex-amplitude imaging modality with single-pixel detection. Thus it might find broad applications in optical metrology and biomedical science.

中文翻译:

使用相干结构照明的复振幅单像素成像

这项研究提出了一种相干结构照明单像素成像方案,用于对具有复杂幅度的物体进行成像。通过使用仅相位空间光调制器进行相位调制,我们可以有效地生成相互干涉的哈达玛基结构光和参考光,形成相干结构照明。使用 4 步相移,通过用单像素光电探测器检测物体光的零频率分量来获取物体的光谱。可以通过应用逆阿达玛变换进一步检索所需的复振幅图像。通过对两个蚀刻玻璃物体、蜻蜓翅膀和分辨率测试图进行成像,实验证明了所提出的方案。得益于相位调制,该方案效率高,成像质量高,空间分辨率高,配置简单稳定,可以同时获取目标物体的相位和幅度信息。所提出的方案提供了一种具有单像素检测的有前途的复振幅成像模式。因此,它可能会在光学计量学和生物医学科学中找到广泛的应用。
更新日期:2021-12-06
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