Detection of low concentrations of the l-valine solution using high-resolution THz-ATR spectroscopy

IF 2.2 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-03-20 DOI:10.1016/j.optcom.2025.131779

Jixuan Hao , Liqi Cui , Jiangkun Tian , Jingyi Shu , Guozhong Zhao

引用次数: 0

Abstract

Herein, we developed a terahertz time-domain attenuated total reflection (THz-ATR) system with high spectral resolution. The THz-ATR system has a spectral range of 0.2–2 THz, a signal-to-noise ratio higher than 60 dB, and a spectral resolution of up to 3 GHz. This system detects water-containing samples based on the evanescent wave generated by total reflection and is capable of sensitively recognizing the refractive index of water-containing samples. The quantitative detection of l-valine solutions with a concentration gradient of 100 mM was realized using the proposed system. This study provides novel insights into the quantitative detection of THz-wave water-containing samples.

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来源期刊

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.