Abstract

Dual-channel phase-shifting interferometry for simultaneous phase microscopy is presented. Red and blue light beams are used for microscope illumination. A 45° 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.

© 2012 Chinese Optics Letters

Slightly off-axis interferometry for microscopy with second wavelength assistance

Junhe Han, Peng Gao, Baoli Yao, Yuzong Gu, and Mingju Huang
Appl. Opt. 50(17) 2793-2798 (2011)

Parallel two-step phase-shifting point-diffraction interferometry for microscopy based on a pair of cube beamsplitters

Peng Gao, Baoli Yao, Junwei Min, Rongli Guo, Juanjuan Zheng, Tong Ye, Irina Harder, Vanusch Nercissian, and Klaus Mantel
Opt. Express 19(3) 1930-1935 (2011)

Parallel on-axis phase-shifting holographic phase microscopy based on reflective point-diffraction interferometer with long-term stability

Rongli Guo, Baoli Yao, Peng Gao, Junwei Min, Jun Han, Xun Yu, Ming Lei, Shaohui Yan, Yanlong Yang, Dan Dan, and Tong Ye
Appl. Opt. 52(15) 3484-3489 (2013)

Parallel-quadrature on-axis phase-shifting common-path interferometer using a polarizing beam splitter

Hongyi Bai, Mingguang Shan, Zhi Zhong, Lili Guo, and Yabin Zhang
Appl. Opt. 54(32) 9513-9517 (2015)

Simultaneous phase-shifting dual-wavelength interferometry based on independent component analysis

Jiaosheng Li, Xiaoxu Lu, Xiaofei Xu, Zhenxing Yin, Junwei Shou, Linbo Huang, Hongzhi Cai, Dejin Zheng, and Liyun Zhong
Appl. Opt. 56(13) 3673-3678 (2017)