Image enhancement in phase shifting digital holographic microscopy using spiral phase filter

2010 ◽  
Author(s):  
Mei-Lan Piao ◽  
Jae-Hyeung Park ◽  
Nam Kim ◽  
Sang-Geun Gil
Keyword(s):  
Image Enhancement ◽  
Phase Shifting ◽  
Digital Holographic Microscopy ◽  
Phase Filter ◽  
Holographic Microscopy ◽  
Spiral Phase

Synthetic aperture common-path digital holographic microscopy with spiral phase filter

2017 ◽  
Vol 19 (6) ◽  
pp. 065604
Author(s):  
Han-Yen Tu ◽  
Wei-Jen Hsiao ◽  
Xin-Ji Lai ◽  
Yu-Chih Lin ◽  
Chau-Jern Cheng
Keyword(s):  
Synthetic Aperture ◽  
Digital Holographic Microscopy ◽  
Common Path ◽  
Phase Filter ◽  
Holographic Microscopy ◽  
Spiral Phase

Digital Holographic Microscopy

1999 ◽  
Vol 5 (S2) ◽  
pp. 362-363
Author(s):  
Tong Zhang ◽  
Ichirou Yamaguchi ◽  
Hywel Morgan
Keyword(s):  
Quantitative Analysis ◽  
Optical Microscopy ◽  
Digital Holography ◽  
Focal Depth ◽  
Phase Shifting ◽  
Digital Holographic Microscopy ◽  
Photographic Recording ◽  
Scanning Confocal Microscopy ◽  
Optical Scanning Holography ◽  
Holographic Microscopy

We applied phase-shifting digital holography to microscopy in this paper. At first lensless microscopy is proposed, in which no optical adjustment is necessary. Then, the method is applied to relax the limitation of focal depth in traditional optical microscopy. A theory for image formation and experimental verification using a few specimens are described.keywords: microscopy, digital holography, phase shiftingDue to the finite focal depth of an imaging lens, a limitation to normal optical microscopy-is that, only the 2-dimensional (2-D) information of an object can be obtained at one time. Besides, it is not convenient for quantitative analysis the observed image. Optical sectioning microscopy (OSM) and scanning confocal microscopy (SCM) which use opto-electronic detection have been proposed for quantitative analysis of a 3-D object. However, the former requires critical mechanical adjustment, while the latter uses timeconsuming mechanical 3-D scanning. Holographic microscopy can solve these problems because it can record 3-D information at one time. But, the chemical processing of holograms and the mechanical focusing at the reconstructed images cause more or less trouble. A 3-D imaging technique without use of photographic recording called optical scanning holography has recently been reported. However, there are also some trouble owing to the twin-image noise.

Study on the simplified phase-shifting digital holographic microscopy

Optik ◽  
2010 ◽  
Vol 121 (14) ◽  
pp. 1251-1256 ◽  
Author(s):  
Peizhen Qiu ◽  
Hui Wang ◽  
Hongzhen Jin ◽  
Yong Li ◽  
Yile Shi
Keyword(s):  
Phase Shifting ◽  
Digital Holographic Microscopy ◽  
Holographic Microscopy

Parallel phase-shifting color digital holographic microscopy

3D Research ◽  
2010 ◽  
Vol 1 (4) ◽  
Author(s):  
Tatsuki Tahara ◽  
Takashi Kakue ◽  
Yasuhiro Awatsuji ◽  
Kenzo Nishio ◽  
Shogo Ura ◽  
...  
Keyword(s):  
Phase Shifting ◽  
Digital Holographic Microscopy ◽  
Holographic Microscopy

scholarly journals Two-step phase shifting differential-recording digital holographic microscopy

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Jun-He Han ◽  
Ruo-Ping Li ◽  
Jun-Hui Liu ◽  
Fu-Sheng Hai ◽  
Ming-Ju Huang
Keyword(s):  
Phase Shifting ◽  
Digital Holographic Microscopy ◽  
Holographic Microscopy
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