scholarly journals Experimental study of the effects of the spatial filtering on off-axis digital holography operating out and in of the diffraction limit

2017 ◽  
Vol 50 (1) ◽  
pp. 93-102
Author(s):  
R. Castañeda ◽  
D. Hincapié-Zulauga ◽  
J. García-Sucerquia
Keyword(s):  
Experimental Study ◽  
Digital Holography ◽  
Spatial Filtering ◽  
Diffraction Limit

Experimental study of optical hyperbolic metamaterials for high-efficiency spatial filtering

2020 ◽  
Vol 45 (17) ◽  
pp. 4923
Author(s):  
Na Yao ◽  
Jiao Jiao ◽  
Zhenfei Luo ◽  
Du Wang ◽  
Ke Cheng ◽  
...  
Keyword(s):  
Experimental Study ◽  
High Efficiency ◽  
Spatial Filtering ◽  
Hyperbolic Metamaterials

Experimental study of frequency response in digital holography

Optik ◽  
2018 ◽  
Vol 157 ◽  
pp. 612-620
Author(s):  
Nazly Hincapie ◽  
Jorge Garcia-Sucerquia
Keyword(s):  
Experimental Study ◽  
Frequency Response ◽  
Digital Holography

Experimental Study on Spatial Filtering Imaging Method of Diffraction Gratings

2018 ◽  
Vol 38 (2) ◽  
pp. 0205001
Author(s):  
高旭 Gao Xu ◽  
王仁杰 Wang Renjie ◽  
李金环 Li Jinhuan ◽  
王玉婷 Wang Yuting ◽  
黄继鹏 Huang Jipeng
Keyword(s):  
Experimental Study ◽  
Diffraction Gratings ◽  
Spatial Filtering ◽  
Imaging Method

Spatial Filtering By Digital Holography

1974 ◽  
Vol 13 (3) ◽  
Author(s):  
K. Campbell ◽  
G. W. Wecksung ◽  
C. R. Mansfield
Keyword(s):  
Digital Holography ◽  
Spatial Filtering

Experimental Study of the Incoherent Digital Holography

2015 ◽  
Vol 42 (12) ◽  
pp. 1209003
Author(s):  
石侠 Shi Xia ◽  
朱五凤 Zhu Wufeng ◽  
袁斌 Yuan Bin ◽  
杜艳丽 Du Yanli ◽  
弓巧侠 Gong Qiaoxia ◽  
...  
Keyword(s):  
Experimental Study ◽  
Digital Holography

Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

1995 ◽  
Vol 53 ◽  
pp. 636-637
Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe
Keyword(s):  
Experimental Study ◽  
Spherical Aberration ◽  
Incident Beam ◽  
Optical Parameters ◽  
Beam Tilting ◽  
Illumination Method ◽  
Restoration Method ◽  
Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

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