Terahertz Real-Time Off-Axis Digital Holography with Zoom Function
Lei Hou1,2, Xiao-Wei Han1,3, Lei Yang1, Wei Shi1,2**
1Department of Applied Physics, Xi'an University of Technology, Shaanxi 710048 2National Key Laboratory of Science and Technology on Applied Physical Chemistry, Shaanxi 710061 3Institute of Physical and Electrical Engineering, Weinan Normal University, Weinan 714000
Abstract：We present a terahertz (THz) real-time digital holographic system with zoom function worked at 0.17 THz. 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.
2017, Vol. 34 
