Dual-channel phase-shifting interferometry for microscopy with second wavelength assistance

Autor(en)

Juanjuan Zheng, B Yao, Romano Rupp, Tong Ye, Peng Gao, Junwei Min, Rongli Guo

Abstrakt

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

Organisation(en)

Physik Funktioneller Materialien

Externe Organisation(en)

Chinese Academy of Sciences (CAS)

Journal

Chinese Optics Letters

Band

10

Anzahl der Seiten

4

ISSN

1671-7694

DOI

https://doi.org/10.3788/COL201210.010901

Publikationsdatum

2012

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/b4e1d8ff-8c91-4d6d-9ca5-2cae85af06ad