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| 1 | A novel random phase-shifting digital holographic microscopy method显示文摘This paper proposes a new method that reconstructs the information of specimen by using random phase shift step in digital holographic microscopy (DHM). The principles of the method are described and discussed in detail. In practical experiment, because the phase shifter is neither perfectly linear nor calibrated, digital holograms with inaccurate phase shift step are recorded by the charge-coupled device (CCD). The phase could be accurately reconstructed from the recorded digital holograms by using the random phase-shifting algorithm, which makes up for reconstructed phase error caused by ordinary phase-shifting algorithm. The phase aberration compensation is also discussed. In order to verify the flexibility of the proposed method, numerical simulation of random phase-shifting DHM was carried out. The simulation results illustrated that the presented method is effective when the phase shift step is unknown or random in DHM. | HuiMin Xie ZhenXing Hu FuLong Dai YanJie Li PengWan Chen QingMing Zhang FengLei Huang | 2009 | Science China(Technological Sciences)2009，52，7： | 3 |
| 2 | Development and instrumentation of an integrated three-dimensional optical testing system for application in integrated circuit packaging显示文摘 | Su Fei Cherm Sin Chian Dai Fulong | 2005 | Review of Scientific Instrument2005，76，9： | 1 |
| 3 | Experimental study about nano-deformation field near quasi-cleavage crack tip显示文摘 | Yongming Xing Fulong Dai Wei Yang | 2000 | Science in China Series A: Mathematics2000，，9： | 1 |
| 4 | Experimental study about nano-deformation field near quasi-cleavage crack tip显示文摘 | Yongming Xing Fulong Dai Wei Yang | 2000 | Science in China Series A: Mathematics2000，，9： | 1 |
| 5 | A novel random phase-shifting digital holographic microscopy method显示文摘 | HuiMin Xie ZhenXing Hu FuLong Dai YanJie Li PengWan Chen QingMing Zhang FengLei Huang | | 0，2009，： | 1 |
| 6 | POLARIZED SPECKLE-PHOTOELASTICITY FOR 3-D STRESS ANALYSIS显示文摘Combining speckle interferometry with photoelasticity,the absolute retardation fringes in 3-Dmodel are obtained by interference of the polarized rays reflected from the two surfaces of a sandwiched plateinside the model.This method can avoid the troubles introduced by Poisson’s ratio μ=0.5 andstress-optical constants ratio A/B=-2 of the photoelastic material in a stress-frozenstate,and yield the re-sults which provide necessary supplementary information for the completely-experimental solution of 3-Dstress state.A comparison of experimental results with theoretical ones shoves the feasibility of the methodproposed in the present paper. | Dai Fulong Fang Jing (Department of Engineering Mechanics,Tsinghua University) | 1989 | Acta Mechanica Sinica1989，5，1： | 0 |
| 7 | POLARIZED SHEARING HOLOGRAPHIC-MOIR INTERFEROMETRY显示文摘A new holographic-moirè method is presented to obtain the in-plane strain fringe patterns.During the recording,double object beams and dual reference beams of orthogonally polarized state are usedto illuminate the object and the holographic plate,respectively.Two carriers modulated by deformation areobtained through double-exposure or in real time.Pure in-plane displacement derivative patterns are thenobtained through twice filtering. | Fang Jing Dai Fulong (Tsinghua University,Beijing) | 1989 | Acta Mechanica Sinica1989，5，2： | 0 |
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