空间光调制器
光学
相位恢复
波前
图像分辨率
相位调制
镜头(地质)
材料科学
采样(信号处理)
相(物质)
图像传感器
准直光
计算机科学
探测器
物理
傅里叶变换
激光器
相位噪声
量子力学
作者
Zhao Wang,Gongxiang Wei,Xiaolu Ge,Huiqiang Liu,Ben-Yi Wang
出处
期刊:Applied Optics
[The Optical Society]
日期:2020-07-10
卷期号:59 (20): 6148-6148
被引量:8
摘要
We propose a single-beam high-resolution quantitative phase imaging method based on a spatial light modulator (SLM) and an incremental binary random sampling (IBRS) algorithm. In this method, the image of the test object presents on the image sensor through an optical microscopy system composed of an objective lens and a collimating lens. A transmittance SLM displaying a group of well-designed IBRS patterns is inserted in the optical microscopy system to modulate the object wavefront. The phase information of the object image can be quantitatively retrieved from the recorded intensities using the IBRS algorithm and the amplitude obtained directly from the diffraction intensity. The IBRS algorithm employed in our method has higher accuracy for phase retrieval compared with our previously proposed complementary random sampling algorithm, which is confirmed by simulations. Further, we demonstrate experimentally the feasibility of our method through several examples: phase imaging of immersion oil droplets with a diffraction-limited lateral resolution of 1.54 µm and a few microbiological specimens with 0.70 µm. Experimental results reveal that our proposed method provides a feasible single-beam technique for quantitative phase imaging with a high spatial resolution.
科研通智能强力驱动
Strongly Powered by AbleSci AI