THz imaging of nucleobases and cancerous tissue using a GaP THz-wave generator

被引：107

作者：

Nishizawa, J ^{[1
]}

Sasaki, T

Suto, K

Yamada, T

Tanabe, T

Tanno, T

Sawai, T

Miura, Y

机构：

[1] Semicond Res Fdn, Semicond Res Inst, Aoba Ku, Sendai, Miyagi 9800862, Japan

[2] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan

[3] Iwate Med Univ, Sch Med, Dept Pathol, Morioka, Iwate 0208505, Japan

来源：

OPTICS COMMUNICATIONS | 2005年 / 244卷 / 1-6期

关键词：

terahertz imaging; terahertz spectroscopy; frequency-tunable coherent terahertz wave; cancer liver; cytosine;

D O I：

10.1016/j.optcom.2004.09.064

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We constructed a terahertz (THz) spectroscopic imaging system using a GaP THz-wave generator with automatic scanning control, and demonstrated power-transmission imaging measurements. To characterize the system, images of polyethylene pellets containing cytosine powder at various concentrations were taken. At a resonance frequency of 2.86 THz, the imaging system detected 5000 ppm cytosine. In addition, we demonstrated that THz imaging has a possibility to distinguish regions of metastatic cancer from normal tissue in liver, by comparing a THz-wave image at 0.835 THz with that at 1.465 THz. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：469 / 474

页数：6

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