Ultra-high sensitive acetylene detection using quartz-enhanced photoacoustic spectroscopy with a fiber amplified diode laser and a 30.72 kHz quartz tuning fork

被引：107

作者：

Ma, Yufei ^{[1
,2
]}

He, Ying ^{[1
]}

Zhang, Ligong ^{[1
]}

Yu, Xin ^{[1
]}

Zhang, Jingbo ^{[1
]}

Sun, Rui ^{[2
]}

Tittel, Frank K. ^{[3
]}

机构：

[1] Harbin Inst Technol, Natl Key Lab Sci & Technol Tunable Laser, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Postdoctoral Mobile Stn Power Engn & Engn Thermop, Harbin 150001, Peoples R China

[3] Rice Univ, Dept Elect & Comp Engn, 6100 Main St, Houston, TX 77005 USA

来源：

APPLIED PHYSICS LETTERS | 2017年 / 110卷 / 03期

基金：

中国国家自然科学基金; 中国博士后科学基金; 黑龙江省自然科学基金; 美国国家科学基金会;

关键词：

QUANTUM CASCADE LASER; PPB-LEVEL DETECTION; QEPAS SENSOR;

D O I：

10.1063/1.4974483

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An ultra-high sensitive acetylene (C2H2) Quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor based on a high power laser and a quartz tuning fork with a resonance frequency f(0) of 30.72 kHz was demonstrated. An erbium-doped fiber amplifier (EDFA) amplified distributed feedback diode laser with a center wavelength of 1.53 mu m was used as the exciting source. A 33.2 ppb minimum detection limit (MDL) at 6534.37 cm(-1) was achieved, and the calculated normalized noise equivalent absorption coefficient was 3.54 x 10(-8) cm(-1) W/root Hz when the laser output power was 1500 mW. The ppb-level detection sensitivity of C2H2 validated the reported QEPAS method. Published by AIP Publishing.

引用

页数：5

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