{"title":"A Scanning-Free Terahertz Frequency Domain Spectroscopy","authors":"Yu Qin, Mingrui Zou, Zeyu Li, Qiang Yan, Xun Zhou, Weipeng Kong","doi":"10.1007/s10762-023-00961-y","DOIUrl":null,"url":null,"abstract":"<p>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.</p>","PeriodicalId":16181,"journal":{"name":"Journal of Infrared, Millimeter, and Terahertz Waves","volume":"45 1","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Infrared, Millimeter, and Terahertz Waves","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s10762-023-00961-y","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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.
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.
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