Far-infrared vibrational spectra of benzoic acid and its derivates measured by THztime-domain spectroscopy

GE Min ZHAO Hongwei JI Te YU Xiaohan WANG Wenfeng

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Far-infrared vibrational spectra of benzoic acid and its derivates measured by THztime-domain spectroscopy

更新时间：2021-03-12

- Far-infrared vibrational spectra of benzoic acid and its derivates measured by THztime-domain spectroscopy
- NUCLEAR TECHNIQUES Issue 7, (2004)
- 作者机构：
  
  1. 中国科学院上海应用物理研究所
  2. 中国科学院上海应用物理研究所,上海,201800
- 作者简介：
- 基金信息：
  
  中国科学院上海应用物理所导向性项目(90120332)资助
- DOI：
  CLC： O625
- Published：01 July 2004
- 稿件说明：
移动端阅览
[1]葛敏,赵红卫,吉特,余笑寒,王文锋.苯甲酸及其衍生物的THz-TDS研究[J].核技术,2004(07):545-546.

GE Min ZHAO Hongwei JI Te YU Xiaohan WANG Wenfeng. Far-infrared vibrational spectra of benzoic acid and its derivates measured by THztime-domain spectroscopy[J]. Nuclear techniques, 2004, (7): 545-546.
[1]葛敏,赵红卫,吉特,余笑寒,王文锋.苯甲酸及其衍生物的THz-TDS研究[J].核技术,2004(07):545-546. DOI：

GE Min ZHAO Hongwei JI Te YU Xiaohan WANG Wenfeng. Far-infrared vibrational spectra of benzoic acid and its derivates measured by THztime-domain spectroscopy[J]. Nuclear techniques, 2004, (7): 545-546. DOI：

摘要

太赫兹时域光谱（Terahertz time domain spectroscopyr

THz-TDS）是基于飞秒超快激光的远红外波段光谱测量新技术。我们利用该技术对苯甲酸及其单甲基取代物进行测量

得到了它们在0.1-2.0THz波段的吸收谱图。4种物质的吸收谱有明显的特征

可以将这几种化合物区分开来

这表明THz-TDS技术可以分辨化合物结构上的微小差异

可以应用于物质检测与分析。

Abstract

Terahertz time-domain spectroscopy (THz-TDS) is a new technique based on femto-second laser technology. In the article we present well-resolved absorption spectra of benzoic acid and its 2-

and 4-methyl substitutes in the spectral region between 0.1 and 2.0THz using THz-TDS. Comparing absorption spectra of the different chemicals

we can distinguish the four substances easily. The THz-TDS is demonstrated to be highly sensitive to minor changes of molecular structures

and can be applied to detect and analyze materials.

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