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Simultaneous Measurement of NO and NO2 using a Dual-Wavelength Quantum Cascade Laser

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Abstract

We demonstrate a sequentially operating dual-wavelength QCL, emitting single-mode at 5.26 and 6.25 μm, and its spectroscopic application on an automotive test-bench, and for air pollution monitoring reaching over 10 Hz and sub-ppb detection.

© 2015 Optical Society of America

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