| Scalable Talbot effect of periodic array objects |
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| 作者姓名： | 杨瑞 薛振法 史志勇 周立强 朱林伟 |
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| 作者单位： | School of Physics and Optoelectronic Engineering |
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| 基金项目： | supported by the National Natural Science Foundation of China(NSFC)(Nos.61675093 and61705096);the Natural Science Foundation of Shandong Province(No.ZR2017MA035);the Shandong Province Higher Educational Science and Technology Program(No.J17KA176);the Taishan Scholars Project of Shandong Province(No.ts2015110055)。 |
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| 摘 要： | A type of scalable self-imaging capable of variable magnification or minification of periodic objects is demonstrated in the focal plane of a lens illuminated by a point source.The theory and the experimental results show that the self-imaging phenomenon can also be realized in the focal plane of a lens regardless of whether the distances satisfy the lens formula or not.The particular property of this scalable self-imaging effect is that the images in the focal plane can be controlled with different scaling factors only when the distances between the point source and the periodic object satisfy a certain condition.This discovery should open a new field of diffraction imaging and new application opportunities in precision measurement.
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| 关 键 词： | Talbot effect PERIODIC OBJECT DIFFRACTION theory LENS |
Scalable Talbot effect of periodic array objects |
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| Rui Yang,Zhenfa Xue,Zhiyong Shi,Liqiang Zhou,Linwei Zhu.Scalable Talbot effect of periodic array objects[J].中国光学快报(英文版),2020(3):6-10. |
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| Authors: | Rui Yang Zhenfa Xue Zhiyong Shi Liqiang Zhou Linwei Zhu |
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| Institution: | (School of Physics and Optoelectronic Engineering,Ludong University,Yantai 264025,China) |
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| Abstract: | A type of scalable self-imaging capable of variable magnification or minification of periodic objects is demonstrated in the focal plane of a lens illuminated by a point source. The theory and the experimental results show that the self-imaging phenomenon can also be realized in the focal plane of a lens regardless of whether the distances satisfy the lens formula or not. The particular property of this scalable self-imaging effect is that the images in the focal plane can be controlled with different scaling factors only when the distances between the point source and the periodic object satisfy a certain condition. This discovery should open a new field of diffraction imaging and new application opportunities in precision measurement. |
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