Terahertz Functional Tissue Imaging
In recent years,biomedical imaging techniques using electromagnetic radiation in the terahertz(THz)spectral band,between 0.2THz and 10THz,has drawn considerable interest and made progress due to the ability of THz radiation to interact with biological tissue at the molecular structure level,in addition to being non-ionizing.For example,THz waves have been used to identify tissue changes in tooth enamel,cartilage,and malignant cancer cells.Terahertz Time-Domain Spectroscopy(THz-TDS)is one of the most versatile methods for spectroscopic image acquisition because of its ability to simultaneously determine the amplitude and phase of the traveling wave over a broad spectral range.In this work,we investigate the use of THz-TDS imaging techniques to uniquely identify changes in tissue samples for both forensic and treatment applications.Using THz-TDS imaging in both transmission and refiection modes,we examine tissue samples that have been damaged by an acid.The structural deterioration to the tissue leads to a distinct fingerprint on the tissue that creates a contrast visible in the THz.In this study,we correlate the observed spectroscopic change in the THz time domain spectra and the frequency spectra.
S.M.Kim P.Kung
Department of Electrical and Computer Engineering The University of Alabama,Tuscaloosa,USA
国际会议
Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)
台北
英文
434-437
2013-03-01（万方平台首次上网日期，不代表论文的发表时间）