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Title: Terahertz Polarimetric Imaging for Biomedical Applications
We present a reflection-mode, polarimetric imaging system that can achieve 45µm sample resolution and measure the co-polarized and cross-polarized reflected field components individually over the 750GHz1.1THz band. The system is based on a vector network analyzer (VNA) in conjunction with frequency extenders and illuminates the sample under test through a high-resistivity Silicon (HRSi) lens to achieve image resolution 3.42-times better than the free-space diffraction limit. The two ports of the VNA are used to capture the co-polarized and cross-polarized images of the same sample. A simple quasi-optical setup is used to isolate and direct the cross-polarized reflected signal without significantly degrading the copolarized signal. The utility of the proposed system is demonstrated using biomedical samples in form of formalin-fixed paraffin-embedded (FFPE) tissues.  more » « less
Award ID(s):
1710977
PAR ID:
10066674
Author(s) / Creator(s):
; ; ;
Date Published:
Journal Name:
2018 IEEE Antennas and Propagation Society Symposium on Antenna and Propagation and URSI CNC/USNC Joint Meeting
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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