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Talbot interferometry with an adaptive light intensity compensator |
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| Authors: | Qian Liu Ping Xie Teruhito Mishima Ryoji Ohba |
| Institution: | a Division of Applied Physics, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan b Division of Electronics and Information Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan |
| Abstract: | Talbot interferometry with a larger applicable scope has been investigated based on the intensity amplification method to weak moiré fringes by using photorefractive crystal as a light amplifier. It not only has function of conventional Talbot interferometry, but also is suitable for situations such as weak incident beam and detected object with strong absorption. The investigation indicates that the method or technique is feasible and the results of theoretical analysis are verified by experiments. Based on this investigation, Talbot interferometry with an adaptive light intensity compensator is proposed and some merits and demerits of the technique have briefly been discussed. |
| Keywords: | Weak moiré fringes Talbot interferometry Adaptive light intensity compensator |
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