Rapid in-focus corrections on quantitative amplitude and phase imaging using transport of intensity equation method

2017 ◽  
Vol 266 (3) ◽  
pp. 253-262 ◽  
Author(s):  
X. MENG ◽  
X. TIAN ◽  
Y. KONG ◽  
A. SUN ◽  
W. YU ◽  
...  
2016 ◽  
Vol 18 (10) ◽  
pp. 105302 ◽  
Author(s):  
Xiaolin Tian ◽  
Xin Meng ◽  
Wei Yu ◽  
Xiaojun Song ◽  
Liang Xue ◽  
...  

Photonics ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 177
Author(s):  
Iliya Gritsenko ◽  
Michael Kovalev ◽  
George Krasin ◽  
Matvey Konoplyov ◽  
Nikita Stsepuro

Recently the transport-of-intensity equation as a phase imaging method turned out as an effective microscopy method that does not require the use of high-resolution optical systems and a priori information about the object. In this paper we propose a mathematical model that adapts the transport-of-intensity equation for the purpose of wavefront sensing of the given light wave. The analysis of the influence of the longitudinal displacement z and the step between intensity distributions measurements on the error in determining the wavefront radius of curvature of a spherical wave is carried out. The proposed method is compared with the traditional Shack–Hartmann method and the method based on computer-generated Fourier holograms. Numerical simulation showed that the proposed method allows measurement of the wavefront radius of curvature with radius of 40 mm and with accuracy of ~200 μm.


2020 ◽  
Vol 126 ◽  
pp. 105898 ◽  
Author(s):  
Xiuping Zhang ◽  
Shumin Yang ◽  
You Li ◽  
Junyong Zhang ◽  
Gang Zheng ◽  
...  

2018 ◽  
Vol 20 (3) ◽  
pp. 035301 ◽  
Author(s):  
Junbao Hu ◽  
Xin Meng ◽  
Qi Wei ◽  
Yan Kong ◽  
Zhilong Jiang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document