Single shot point-diffraction interferometer by a plate beamsplitter

A single shot point-diffraction interferometer (PDI) is proposed in this paper, in which the object beam is split into two copies by means of a beamsplitting module consisting of one plate beamsplitter and one mirror. One of the reflected beams is spatially filtered as a reference beam by one pinhol...

Full description

Saved in:
Bibliographic Details
Published in:Physica scripta 2024-06, Vol.99 (6), p.65118
Main Authors: Shan, Mingguang, Yin, Zhiyu, Zhong, Zhi, Liu, Bin, Yu, Lei, Liu, Lei
Format: Article
Language:English
Subjects:
common-path interferometry
off-axis digital holography
point-diffraction interferometer
quantitative phase microscopy
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A single shot point-diffraction interferometer (PDI) is proposed in this paper, in which the object beam is split into two copies by means of a beamsplitting module consisting of one plate beamsplitter and one mirror. One of the reflected beams is spatially filtered as a reference beam by one pinhole array in the spectral plane. The split two beams share almost the same path, and by adjusting the inclined angle of the plate beamsplitter, the carrier frequency and legibility of the interferogram can be modulated easily. Moreover, the contrast of the interferogram can be adjusted by changing different plate beamsplitters. Compared to conventional common path off-axis interferometers, this PDI has a simple optical setup, easy optical implementation and outstanding measurement ability with high precision, measurement efficiency and stability. Several experimental results will be provided to demonstrate the effectiveness of the proposed system.
ISSN:0031-8949
1402-4896
DOI:10.1088/1402-4896/ad491f