| 固体FTIR光声光谱的共振增强 |
| |
| 引用本文： | 俞钢,张存洲,张光寅.固体FTIR光声光谱的共振增强[J].光学学报,1988(1). |
| |
| 作者姓名： | 俞钢 张存洲 张光寅 |
| |
| 作者单位： | 南开大学物理系
(俞钢，张存洲)，南开大学物理系(张光寅) |
| |
| 摘 要： | 我们在FTIR光声光谱测量工作中首次观察到由光声池频率响应特性造成的光声信号共振增强现象.研究表明,这种效应起源于样品腔中气体传声器对声压信号的响应不平坦.文中讨论了利用此效应提高光声检测灵敏度和信噪比的可能性,并且给出了一个利用共振增强方法研究导电聚合物PTh样品中SP_3结构缺陷的实例.
|
| 关 键 词： | 共振 光声光谱 傅里叶红外 |
Resonance enhancement of photoacoustic FTIR spectroscopy of solid samples |
| |
| YU GANG,ZHANG CUNZHOU AND ZHANG GUANGYIN.Resonance enhancement of photoacoustic FTIR spectroscopy of solid samples[J].Acta Optica Sinica,1988(1). |
| |
| Authors: | YU GANG ZHANG CUNZHOU AND ZHANG GUANGYIN |
| |
| Abstract: | The resonance enhancement of photoaconstic signals due to the frequency response of the photoacouatic sample cell in FTIR-PAS measurements was observed for the first time. The frequency response analysis of the cell shows that this effect originates from the unflat response of the pressure transducer of gas in the chamber. The possibility of improving the sensitivity and the S/N ratio of the photoacoustic measurements with the resonance enhancement method was discussed in this paper, and an example of using this method to analyze structure defects of SP3 in the conducting polymer PTh samples was also given. |
| |
| Keywords: | resonance photoacoustic spectroscopy (PAS) FTIR |
| 本文献已被 CNKI 等数据库收录！ |
