期刊
OPTICS AND LASERS IN ENGINEERING
卷 168, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2023.107656
关键词
Holographic tomography; Phase measurement; Off-axis multiplexing; High-speed 3D imaging
类别
A high-speed digital holographic tomography system based on off-axis multiplexed recording is introduced for fast 3D phase measurements of transparent gasses. By using object beams at various angles and interfering with the reference beam, holograms are recorded and phase information is reconstructed to obtain the 3D phase information of the object by back-projection algorithm. The system achieved a measurement speed of 65 frames per second for an asymmetric gas flow in the experiments.
A high-speed digital holographic tomography system based on off-axis multiplexed recording is proposed for fast three-dimensional (3-D) phase measurements of transparent gasses. Object beams pass through the object at 0, 45, 90, and 135 degrees and interfere with the reference beam to form a hologram that is recorded by a single camera. The phase information of each optical path is reconstructed by the Fresnel diffraction integral calculation, and then the 3-D phase information of the object can be obtained by the simple back-projection algorithm. The recording speed of the system depends entirely on the frame rate of the camera. In the experiments, we successfully measured the 3-D phase information of an asymmetric gas flow with the proposed system at 65 frames per second.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据