Terahertz Real-Time Off-Axis Digital Holography with Zoom Function

We present a terahertz （THz） real-time digital holographic system with zoom function worked at 0.17THz. The magnification factor ranges from 1 to 2. In the imaging experiment, the resolution is 2 mm with the magnification factor of 1.2. A metal sheet with F-shaped hollow is used as a sample, and its...

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Bibliographic Details
Published in:Chinese physics letters 2017-05, Vol.34 (5), p.72-75
Main Author: 侯磊 韩小卫 杨磊 施卫
Format: Article
Language:English
Subjects:
全息系统
变焦功能
太赫兹
实时
成像实验
放大倍数
数字全息
离轴
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Summary:We present a terahertz （THz） real-time digital holographic system with zoom function worked at 0.17THz. The magnification factor ranges from 1 to 2. In the imaging experiment, the resolution is 2 mm with the magnification factor of 1.2. A metal sheet with F-shaped hollow is used as a sample, and its THz holograms are reconstructed by our developed algorithm based on the angular spectrum theorem, and the qualities of the THz images under different conditions are compared.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/34/5/054207