氨基酸的太赫兹宽带光谱研究

Dechong Zhu, Liangliang Zhang, Hua Zhong, Cunlin Zhang
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引用次数: 1

摘要

我们提出了一个实验太赫兹(THz)光谱研究氨基酸使用空气击穿相干检测(ABCD)系统。双色激光诱导空气等离子体产生的强和超宽带(0.1 ~ 10THz)太赫兹辐射,用相干外差探测测量。得到了l -赖氨酸(C6H14N2O2)和l -精氨酸(C6H14N2O2)的宽带太赫兹反射光谱。为了解决RTDS中的相位恢复问题,直接从相对反射率对频率的一阶导数中提取材料的吸收特征。两种氨基酸的吸收特征在0.5~6 THz范围内。发现这两种氨基酸在1.10 THz处都有一个吸收峰。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Terahertz broadband spectroscopic investigations of amino acid
We present an experimental terahertz (THz) spectroscopic investigation of amino acid using an air-breakdown-coherent detection (ABCD) system. The strong and ultra-broadband (0.1 to 10THz) terahertz radiations generated by two-color laser induced air plasma and measured by coherent heterodyne detection. The broadband THz reflection spectra of L-Lysine (C6H14N2O2) and L-Arginine (C6H14N2O2) are obtained. To solve the phase-retrieval problem in RTDS, the absorption signatures of the materials are extracted directly from the first derivative of the relative reflectance with respect to frequency. The absorption features of the two amino acids are characterized in the 0.5~6 THz region. It is found that both the two amino acids have an absorption peak at 1.10 THz.
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