3.1 - Tunable laser spectroscopy combined with novel photoacoustic technology for hand-held low-ppb gas analyzers in various applications

I. Kauppinen, J. Uotila, S. Sinisalo, V.-M. Kittilä, A Helle & R. Raittila
A versatile and modular technology suitable for several gas measurement applications requiring ppb level sensitivity and high selectivity in a hand-held size is presented. The proposed miniaturized cantilever enhanced photoacoustic detection scheme is combined with different types of NIR or MIR tunable laser sources. Several sources can be combined in the same miniaturized measurement cell and the sources are selected by the application requirements. The use of tunable laser sources provides the possibility to use...