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
收藏
页码：19943 / 19950
页数：8
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