Detection of formaldehyde using mid-infrared difference-frequency generation

被引：54

作者：

Mine, Y

Melander, N

Richter, D

Lancaster, DG

Petrov, KP

Curl, RF

Tittel, FK

机构：

[1] Rice Univ, Rice Quantum Inst, Houston, TX 77005 USA

[2] Danish Inst Fundamental Metrol, DK-2800 Lyngby, Denmark

[3] Fachhsch Ostfriesland, Dept Nat Sci Technol, D-26723 Ernden, Germany

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 1997年 / 65卷 / 06期

关键词：

D O I：

10.1007/s003400050344

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Real-time detection and measurement of sub-ppm levels of formaldehyde in ambient air using diode-pumped 3.5 mu m difference-frequency generation (DFG) in periodically poled LiNbO3 (PPLN) is reported. Minimum detectable concentration of 30 ppb was achieved with a compact, portable room-temperature gas sensor configured for formaldehyde (H2CO) detection. This sensitivity, coupled with high selectivity and long term stability, is sufficient for various environmental applications.

引用

页码：771 / 774

页数：4

共 18 条

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