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A team of energy researchers developing hydrogen and ammonia combustion systems faced major hurdles in detecting trace emission species at ultra-low concentrations within turbulent, high-pressure gas flows—creating a critical roadblock to validating carbon-free fuel performance under real engine conditions. By deploying mid-infrared quantum cascade lasers with high-speed pulsing and robust environmental packaging, the group achieved stable, real-time absorption measurements even at extreme temperatures, eliminating interference and enabling precise kinetic modeling without invasive sampling.
Laser Solution: Fiber-coupled tunable quantum cascade laser in the mid-IR, narrow linewidth with high-speed pulsing, used for real-time emission and composition analysis.
Outcome: Delivered reliable sub-part-per-million sensitivity in dynamic environments, supporting optimized fuel blending and reduced carbon impact.