Compact and low-cost THz QTDS system

被引：25
|
作者：
Probst, Thorsten [1 ]
Rehn, Arno
Koch, Martin
机构：
[1] Univ Marburg, Dept Phys, D-35032 Marburg, Germany
来源：
OPTICS EXPRESS | 2015年 / 23卷 / 17期
关键词：
TERAHERTZ; SPECTROSCOPY; LINE;
D O I：
10.1364/OE.23.021972
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a terahertz quasi time domain spectroscopy (QTDS) system setup which is improved regarding cost and compactness. The diode laser is mounted directly onto the optical delay line, making the optical setup more compact. The system is operated using a Raspberry Pi and an additional sound card. This combination replaces the desktop/laptop computer, the lock-in-amplifier, the stage controller and the signal generator. We examined not only a commercially available stepper motor driven delay line, but also the repurposed internal mechanics from a DVD drive. We characterize the performance of the new system concept. (C) 2015 Optical Society of America
引用
收藏
页码：21972 / 21982
页数：11
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