Pre- and post-processing for tomographic reconstruction of terahertz time-domain spectroscopy

被引：3

作者：

Hong, Hye-Jin ^{[1
]}

Park, Jinho ^{[1
]}

Park, Hochong ^{[1
]}

Son, Joo-Hiuk ^{[2
]}

Ahn, Chang-Beom ^{[1
]}

机构：

[1] Kwangwoon Univ, VIA Multimedia Ctr, Seoul 139701, South Korea

[2] Univ Seoul, Dept Phys, Seoul 130743, South Korea

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 17期

基金：

新加坡国家研究基金会;

关键词：

COMPUTED-TOMOGRAPHY; WAVES;

D O I：

10.1364/OE.21.019943

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Reflection-type terahertz tomography is obtained using time-domain spectroscopy. Due to different velocities of the terahertz ray in free space and inside a sample, the tomographic transverse plane is not obtained by a simple reconstruction using time index. A pre-processing method is proposed to compensate for the different velocities of the terahertz ray for tomographic reconstruction. Maximum intensity projection, averaging, and short-time Fourier transform are proposed as post-processing methods along the depth direction for the terahertz tomography. Log-scale display is also suggested for a better visualization. Some experimental results with the pre- and post-processing are demonstrated. (C) 2013 Optical Society of America

引用

页码：19943 / 19950

页数：8

共 13 条

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