基于基底集成空芯波导和双色环形量子级联激光器的先进气体传感器。
Advanced gas sensors based on substrate-integrated hollow waveguides and dual-color ring quantum cascade lasers.
机构信息
Institute of Analytical and Bioanalytical Chemistry, Ulm University, Germany.
Institute of Solid State Electronics, TU Wien, Austria.
出版信息
Analyst. 2016 Oct 24;141(22):6202-6207. doi: 10.1039/c6an01130f.
This study shows the first combination of a ring-shaped vertically emitting quantum cascade laser (riQCL) providing two distinct emission wavelengths combined with a substrate-integrated hollow waveguide (iHWG). This ultra-compact riQCL-iHWG gas sensing device enables the simultaneous detection of two vapor phase species - here, furan and 2-methoxyethanol - providing distinctive absorption features at the emission wavelengths of the riQCL (i.e., 1144 and 1170 cm). Hence, multianalyte gas sensing via a unique mid-infrared (MIR) sensor concept is demonstrated.
本研究展示了首个环形垂直发射量子级联激光器（riQCL）与基底集成空芯波导（iHWG）相结合的组合，提供了两个独特的发射波长。这种超紧凑的 riQCL-iHWG 气体传感装置能够同时检测两种气相物质——呋喃和 2-甲氧基乙醇——在 riQCL 的发射波长处提供独特的吸收特征（即 1144 和 1170 cm）。因此，通过独特的中红外（MIR）传感器概念实现了多分析物气体传感。
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