A Scanning-Free Terahertz Frequency Domain Spectroscopy

IF 1.8 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Infrared, Millimeter, and Terahertz Waves Pub Date : 2023-12-27 DOI:10.1007/s10762-023-00961-y

Yu Qin, Mingrui Zou, Zeyu Li, Qiang Yan, Xun Zhou, Weipeng Kong

引用次数: 0

Abstract

Frequency domain terahertz spectroscopy usually requires frequency scanning, which is quite time-consuming. In this work, we propose a new method to measure the terahertz spectra without scanning, which is based on a terahertz parametric generator and up-conversion detection system. Comparison is made between the terahertz transmission spectra measured by this method and by terahertz time domain spectroscopy (THz-TDS). In the range of 1 to 3 THz, all the absorption peaks observed on the THz-TDS spectra are also found on the spectra obtained by our method. The method has the potential to be single-shot and calibration-free.

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无扫描太赫兹频域光谱仪

频域太赫兹光谱通常需要频率扫描，这相当耗时。在这项工作中，我们提出了一种无需扫描即可测量太赫兹光谱的新方法，该方法基于太赫兹参数发生器和上转换检测系统。我们比较了用这种方法和太赫兹时域光谱法（THz-TDS）测量的太赫兹透射光谱。在 1 至 3 太赫兹范围内，太赫兹-TDS 光谱上观察到的所有吸收峰也出现在我们的方法获得的光谱上。该方法具有单发和免校准的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Infrared, Millimeter, and Terahertz Waves 工程技术-工程：电子与电气

CiteScore

6.20

自引率

6.90%

发文量

审稿时长

3 months

期刊介绍： The Journal of Infrared, Millimeter, and Terahertz Waves offers a peer-reviewed platform for the rapid dissemination of original, high-quality research in the frequency window from 30 GHz to 30 THz. The topics covered include: sources, detectors, and other devices; systems, spectroscopy, sensing, interaction between electromagnetic waves and matter, applications, metrology, and communications. Purely numerical work, especially with commercial software packages, will be published only in very exceptional cases. The same applies to manuscripts describing only algorithms (e.g. pattern recognition algorithms). Manuscripts submitted to the Journal should discuss a significant advancement to the field of infrared, millimeter, and terahertz waves.