PHOTOACOUSTIC-SPECTROSCOPY ON GASES WITH HIGH-PRESSURE CONTINUOUSLY TUNABLE CO2-LASER

被引：3

作者：

REPOND, P

SIGRIST, MW

机构：

[1] Inst of Quantum Electronics, Zurich

来源：

JOURNAL DE PHYSIQUE IV | 1994年 / 4卷 / C7期

关键词：

D O I：

10.1051/jp4:19947123

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a novel photoacoustic detection system with a high pressure CO2 laser as radiation source. The laser is continuously tunable across wavelength ranges from 13 cm(-1) to 18 cm(-1) wide. The narrow bandwidth of 0.017 cm(-1) allows to resolve any fine structure in the absorption spectra of trace gases at atmospheric pressure. The absorption spectra of four gases are reported, demonstrating the great potential improvement in detection selectivity.

引用

页码：523 / 526

页数：4