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Chin. Opt. Lett.
 Home  List of Issues    Issue 01 , Vol. 10 , 2012    10.3788/COL201210.010901

Dual-channel phase-shifting interferometry for microscopy with second wavelength assistance
Juanjuan Zheng1;2, Baoli Yao1, Romano A. Rupp3, Tong Ye1, Peng Gao1, Junwei Min1, Rongli Guo1
1 State Key Laboratory of Transient Optics and Photonics, [Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences], Xi'an 710119, China
2 [Graduate University of Chinese Academy of Sciences], Beijing 100049, China
3 Faculty of Physics, [University of Vienna], Boltzmanngasse 5, A-1090 Vienna, Austria

Chin. Opt. Lett., 2012, 10(01): pp.010901

Keywords(OCIS Code): 090.2880  180.3170  120.3180  170.3880  

Dual-channel phase-shifting interferometry for simultaneous phase microscopy is presented. Red and blue light beams are used for microscope illumination. A 45o tilted beamsplitter replicates the object and reference waves in red light together with the object wave in blue light into two parallel beams. The two resulting quadrature phase-shifting interferograms in red light and the object waves in blue light are generated in the two channels. The two interferograms are recorded simultaneously by a color charge-coupled device (CCD) camera, and can be separated via RGB components of the recorded color patterns without crosstalk. As a result, the phase of tested specimen can be retrieved. The feasibility of the proposed method is demonstrated by test performed on a microscopic specimen.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Posted online:2011/8/5

Get Citation: Juanjuan Zheng, Baoli Yao, Romano A. Rupp, Tong Ye, Peng Gao, Junwei Min, Rongli Guo, "Dual-channel phase-shifting interferometry for microscopy with second wavelength assistance," Chin. Opt. Lett. 10(01), 010901(2012)

Note: This work was supported by the National Natural Science Foundation of China (Nos. 61077005 and 10874240) and the Chinese Academy of Sciences/State Administration of Foreign Experts Affairs of China International Partnership Program for Creative Research Teams.


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