Quantum cascade laser-based photoacoustic spectroscopy of volatile chemicals:: Application to hexamethyldisilazane

被引：7

作者：

Elia, A ^{[1
]}

Rizzi, F ^{[1
]}

Di Franco, C ^{[1
]}

Lugarà, PM ^{[1
]}

Scamarcio, G ^{[1
]}

机构：

[1] INFM, Reg Lab LIT3, Dept Interanteneo Fis Michelangelo Merlin, I-70126 Bari, Italy

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2006年 / 64卷 / 02期

关键词：

hexamethyldisilazane; quantum cascade laser; infrared spectroscopy; photoacoustic spectroscopy;

D O I：

10.1016/j.saa.2005.07.041

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The use of photoacoustic spectroscopy and mid-infrared quantum-cascade lasers (QCLs) for the detection of hexamethyldisilazane (HMDS) is reported. A detection limit of 200 parts in 10(9) is found using a Fabry-Perot QCL operated at 8.4 mu m in pulsed mode and a photoacoustic cell equipped with four electret microphones. The laser multimode spectrum matches the range of the N-H bending absorption band of HMDS. Further improvements to reach lower detection limits are discussed. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：426 / 429

页数：4

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