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| Location-free optical microscopic imaging method with high-resolution based on microsphere superlenses |
| Wang Shu-Ying, Zhang Hai-Jun, Zhang Dong-Xian |
| State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China |
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Abstract In this paper, we propose a novel location-free high-resolution optical microscopic imaging method based on micropipette-microsphere combined probe. According to optical principle, a physical model is established to determine the value of magnification. With SiO2 microspheres of different diameters such as 3.0, 4.4, 5.6, 7.5 and 10.0 μm, microscopic imaging experiments are carried out. The results show that the microstructure of un-etched DVD disk can be significantly magnified and the image contrast is obviously improved, which is consistent well with the theoretical calculation. Microscopic imaging of microstructures based on SiO2 microsphere array is realized by controlling the microspheres with a micropipette. Furthermore, a kind of micropipette-microsphere combined probe is prepared, by which location-free high-resolution optical microscopic imaging has implemented for the first time.
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Received: 19 June 2012
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| PACS: |
42.79.Bh
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(Lenses, prisms and mirrors)
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42.30.Va
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(Image forming and processing)
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07.79.-v
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(Scanning probe microscopes and components)
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42.40.Lx
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(Diffraction efficiency, resolution, and other hologram characteristics)
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| Fund:Project supported by the National Natural Science Foundation of China (Grant Nos. 51077117, 11179026) and Zhejiang Provincial Natural Science Foundation of China (Grant No. Z1110196) |
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Corresponding Authors:
张冬仙
E-mail: zhangdx@zju.edu.cn
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2013, Vol. 62 
