scholarly journals Correction of phase shift in numerical reconstruction of digital holography

2011 ◽  
Author(s):  
Zang jinliang ◽  
Wang bo ◽  
Zhang yan
Keyword(s):  
Phase Shift ◽  
Digital Holography ◽  
Numerical Reconstruction

Evaluation of optical heterogeneity using phase-shift digital holography

2012 ◽  
Vol 8 (5/6) ◽  
pp. 508
Author(s):  
Terutake Hayashi ◽  
Masaki Michihata ◽  
Yasuhiro Takaya
Keyword(s):  
Phase Shift ◽  
Digital Holography

Determination of Phase Shift by Digital Holography

2019 ◽  
Vol 888 ◽  
pp. 43-46
Author(s):  
Yoshitaka Takahashi ◽  
Masatoshi Saito ◽  
Toru Nakajima ◽  
Masakazu Shingu
Keyword(s):  
Phase Shift ◽  
Noise Reduction ◽  
Digital Holography ◽  
High Accuracy ◽  
Measured Data ◽  
Phase Shifting ◽  
Surface Shape ◽  
Shape Measurement ◽  
Phase Shifting Interferometry

In phase shifting interferometry phase shift is applied by various ways, but applying it with high accuracy, especially by LD current modulation, is not easy. In order to determine the accurate phase shift a new method has been proposed that the value of LD current corresponding to π/2 phase shift can be determined by phase shifting digital holography. The measured data of standard in surface shape measurement were used for calibration, and the obtained value was confirmed to cause noise reduction and improvement of holographic reconstructed images in digital holography.

A method of hard X-ray phase-shifting digital holography

2016 ◽  
Vol 23 (4) ◽  
pp. 1024-1029
Author(s):  
So Yeong Park ◽  
Chung Ki Hong ◽  
Jun Lim
Keyword(s):  
Phase Shift ◽  
Digital Holography ◽  
Relative Phase ◽  
Test Pattern ◽  
Fresnel Lens ◽  
Phase Shifting ◽  
New Method ◽  
Phase Plate ◽  
X Ray ◽  
Line Type

A new method of phase-shifting digital holography is demonstrated in the hard X-ray region. An in-line-type phase-shifting holography setup was installed in a 6.80 keV hard X-ray synchrotron beamline. By placing a phase plate consisting of a hole and a band at the focusing point of a Fresnel lens, the relative phase of the reference and objective beams could be successfully shifted for use with a three-step phase-shift algorithm. The system was verified by measuring the shape of a gold test pattern and a silica sphere.

scholarly journals 3D Measurement for Human Red Blood Cells Using Single-shot Phase-Shift Digital Holography

2015 ◽  
Vol 81 (3) ◽  
pp. 247-251
Author(s):  
Qiyue YU ◽  
Ryo TAGUCHI ◽  
Masahiro HOGURO ◽  
Hideyoshi HORIMAI ◽  
Taizo UMEZAKI
Keyword(s):  
Phase Shift ◽  
Red Blood Cells ◽  
Blood Cells ◽  
Digital Holography ◽  
Single Shot ◽  
3D Measurement ◽  
Human Red Blood Cells
Sign in / Sign up

Export Citation Format

Share Document