Lai E P, Voigtman E, Winefordner J D
University of Florida, Chemistry Department, Gainesville, Florida 32611, USA.
Appl Opt. 1982 Sep 1;21(17):3126-8. doi: 10.1364/AO.21.003126.
A simple effective photoacoutic probe employing the acoustic waveguide effect in quartz substrate is described. The photoacoustic probe consists of a quartz rod to the upper end of which a PZT-5A piezoelectric ceramic disk is attached. The probe was used in the acquisition of a dye-laser-excited photoacoustic spectrum of 10-microg/ml 9,10-dimethylanthracene in ethanol at room temperature. With the probe system, the spectrum was found to be essentially identical with the corresponding spectra obtained with a standard cuvette cell/attached PZT disk and a cylindrical cell/attached PZT tube detection systems; the observed relative sensitivities were 1.6:1.0:4.4, respectively.
描述了一种利用石英衬底中的声波导效应的简单有效的光声探头。该光声探头由一根石英棒组成，在其上端附着一个PZT - 5A压电陶瓷盘。该探头用于在室温下采集乙醇中10微克/毫升9,10 - 二甲基蒽的染料激光激发光声光谱。使用该探头系统，发现该光谱与使用标准比色皿/附着PZT盘和圆柱形样品池/附着PZT管检测系统获得的相应光谱基本相同；观察到的相对灵敏度分别为1.6:1.0:4.4。
