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Updated: Dec 26, 2025

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
Published on: March 22, 2019
Zhi-yu Wen1, Ling-fang Wang, Gang Chen
1Key Discipline Laboratory of Novel Micro/Nano Devices and Systems, Microsystem Research Center, Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education, Chongqing University, Chongqing 400044, China.
Quantum cascade lasers (QCLs) offer a powerful mid-infrared source for highly sensitive and selective gas detection. This review covers QCL gas sensing systems, their principles, applications, and future potential.
Area of Science: