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Compact gas sensors based on mid-infrared frequency conversion of semiconductor lasers
Design, development, and application of novel all-solid-state spectroscopic gas sensors is reported. These compact instruments employ mid-infrared difference-frequency generation pumped by room-temperature semiconductor ...
Difference frequency generation: Spectrometers and spectroscopy
The theory of difference frequency generation has been further developed. Derived from basic principles, the equations developed here accurately predict the conversion of power to the idler wave. Critical phasematching can ...