A Digital in-line Holographic Microscope using Fresnel Zone Plate

Yonghao Liang, Yilei Hua, Changqing Xie

2019

Abstract

A digital in-line holographic microscope is presented using Fresnel zone plate. The light impinging on the Fresnel zone plate is divided into a number of diffraction orders. We use the 0rd light, which propagate along the original direction, as the reference beam. And the first order focus is used as a virtual point source after which the sample is placed. The light transmitted through the sample is scattered by the object and the structure information is carried by the light. The interference fringes created by the first and zero order diffraction are recorded by a digital camera. Afterwards, the object information is retrieved using reconstruction algorithm. With the aid of the Fresnel zone plate, an image with higher lateral resolution and lower noise could be obtained. This holographic microscope is tested with several samples and the results show that the lateral resolution is good, and for the phase object, the measured phased difference is accurate compared with the AFM test result.

Paper Citation

in Harvard Style

Liang Y., Hua Y. and Xie C. (2019). A Digital in-line Holographic Microscope using Fresnel Zone Plate.In Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-364-3, pages 209-212. DOI: 10.5220/0007388802090212

in Bibtex Style

@conference{photoptics19,
author={Yonghao Liang and Yilei Hua and Changqing Xie},
title={A Digital in-line Holographic Microscope using Fresnel Zone Plate},
booktitle={Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2019},
pages={209-212},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007388802090212},
isbn={978-989-758-364-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - A Digital in-line Holographic Microscope using Fresnel Zone Plate
SN - 978-989-758-364-3
AU - Liang Y.
AU - Hua Y.
AU - Xie C.
PY - 2019
SP - 209
EP - 212
DO - 10.5220/0007388802090212