Infrared Intracavity Laser Absorption Spectrometer

机译：红外腔内激光吸收光谱仪

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A spectral sensing method with sufficient sensitivity to detect vapors of low vapor-pressure compounds such as explosives would have great promise for defense and security applications. An opportunity is Intracavity Laser Absorption Spectroscopy (ICLAS) at IR wavelengths. Our approach is based on multi-mode external-cavity quantum cascade lasers and a scanning Fabry-Perot spectrometer to analyze the laser mode spectrum in the presence of a narrow band intracavity absorber. This paper presents results of numerical solution of laser rate equations that support feasibility of kilometer effective active-cavity path lengths and sensitivity to concentrations of 10 ppb. This is comparable to the saturated vapor pressure of TNT. System design considerations and first experimental results are presented at 10 and 70 urn wavelengths.

机译：具有足够灵敏度以检测诸如炸药之类的低蒸气压化合物的蒸气的光谱感测方法对于国防和安全应用将具有广阔的前景。机会是在红外波长的腔内激光吸收光谱法（ICLAS）。我们的方法基于多模外腔量子级联激光器和扫描Fabry-Perot光谱仪来分析存在窄带腔内吸收器的情况下的激光模式光谱。本文介绍了激光速率方程数值解的结果，该方程可支持千米有效有效腔路径长度的可行性以及对10 ppb浓度的敏感性。这相当于TNT的饱和蒸气压。在10和70 um波长下介绍了系统设计注意事项和第一批实验结果。

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来源
《Next-generation spectroscopic technologies III》|2010年|P.76800N.1-76800N.8|共8页
会议地点 Orlando FL(US)
作者
G. Medhi; A. V. Muravjov; H. Saxena; J. W. Cleary; C. J. Fredricksen; R. E. Peale; O. Edwards;
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作者单位

Department of Physics, University of Central Florida, Orlando, Florida 32816, USA;

Zyberwear Inc., 2114 New Victor Rd., Ocoee, Florida 34761, USA;

rnDepartment of Physics, University of Central Florida, Orlando, Florida 32816, USA;

Department of Physics, University of Central Florida, Orlando, Florida 32816, USA;

Department of Physics, University of Central Florida, Orlando, Florida 32816, USA;

Department of Physics, University of Central Florida, Orlando, Florida 32816, USA;

Zyberwear Inc., 2114 New Victor Rd., Ocoee, Florida 34761, USA;

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原文格式 PDF
正文语种 eng
中图分类光谱学;
关键词
intracavity; quantum cascade laser; fabry-perot; infrared; spectroscopy;

机译：腔内量子级联激光器法布里-珀罗红外线;光谱学;

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专利

1. Quantum cascade laser intracavity absorption spectrometer for trace gas sensing [J] . A. V. Muraviev, D. E. Maukonen, C. J. Fredricksen, Applied Physics Letters . 2013,第9期

机译：用于痕量气体传感的量子级联激光腔内吸收光谱仪
2. Attenuated total internal reflection spectroscopy with an intracavity laser absorption spectrometer [J] . Ales Charvat, Sergey A.Kovalenko, Bernd Abel Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy . 1999,第7a8期

机译：腔内激光吸收光谱仪的衰减全内反射光谱
3. Mid-infrared laser absorption spectrometers based upon all-diode laser difference frequency generation and a room temperature quantum cascade laser for the detection of CO, N_2O and NO [J] . V.L. KASYUTICH, R.J. HOLDSWORTH, P.A. MARTIN Applied physics . 2008,第2期

机译：基于全二极管激光差频产生的中红外激光吸收光谱仪和室温量子级联激光器，用于检测CO，N_2O和NO
4. Infrared Intracavity Laser Absorption Spectrometer [C] . G. Medhi, A. V. Muravjov, H. Saxena, SPIE Conference on Next-Generation Spectroscopic Technologies . 2010

机译：红外腔内激光吸收光谱仪
5. High Resolution Near-Infrared/Visible Intracavity Laser Spectroscopy of Small Molecules [D] . Harms, Jack C. 2019

机译：小分子的高分辨率近红外/可见腔内激光光谱
6. Determining Biogenic Content of Biogas by Measuring Stable Isotopologues 12CH4 13CH4 and CH3D with a Mid-Infrared Direct Absorption Laser Spectrometer [O] . Teemu Kääriäinen, Craig A. Richmond, Albert Manninen 2018

机译：通过使用中红外直接吸收激光光谱仪测量稳定的同位素12CH4、13CH4和CH3D来确定沼气的生物含量
7. Quantum cascade laser intracavity absorption spectrometer for trace gas sensing [O] . A. V. Muraviev, D. E. Maukonen, C. J. Fredricksen, 2013

机译：痕量气体传感量子级联激光骨内吸收光谱仪
8. Long Intracavity Absorption Spectrometer for the Detection of Atmospheric Trace Gases [R] . McManus, J. B. 1991

机译：用于大气痕量气体检测的长腔内吸收光谱仪

Infrared Intracavity Laser Absorption Spectrometer

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